A mass m is attached to a thin wire and whirled in a vertical circle. The wire is most likely to break when:

the mass is at the lowest point

Pick the wrong answer in the context with rainbow.

An observer can see a rainbow when his front is towards the sun

For a p-type semiconductor, which of the following statements is true?

Holes are the majority carriers and trivalent atoms are the dopants.

At a point A on the earth's surface the angle of dip, δ = +25^° . At a point B on the earth's surface the angle of dip, δ = -25^° . We can interpret that :

A is located in the northern hemisphere and B is located in the southern hemisphere.

The radius of circle, the period of revolution, initial position and sense of revolution are indicated in the fig. (A circle of radius 3 m is drawn about the origin with the x-axis marked; the particle is at P(t = 0) at the top of the circle on the +y axis, the sense arrow on the circle points clock

y(t) = 3 ((π t)/(2) ) , where y in m

A cylindrical conductor of radius R is carrying a constant current. The plot of the magnitude of the magnetic field, B with the distance d from the centre of the conductor, is correctly represented by the figure :

B rises linearly from the axis to a maximum at d = R and then falls off as 1/d

Back to NEET PYQs

NEET 2019 May 05 Question Paper with Solutions

Q: How many questions are in the NEET 2019 May 05 paper?

The NEET 2019 May 05 paper has 180 questions — Physics (45), Chemistry (45) and Biology (90). Every question is on this page with its correct answer and a step-by-step solution.

Q: What is the marking scheme for NEET?

NEET awards +4 marks for each correct answer and −1 for a wrong answer, with 0 for questions left unattempted. The paper covers Physics, Chemistry and Biology across 180 questions for 720 marks.

Q: Are the answer key and step-by-step solutions provided for the 2019 May 05 paper?

Yes — every question shows the correct answer (answer key) and a detailed step-by-step solution, free to read online.

Q: Can I take the NEET 2019 May 05 paper as a timed mock test?

Yes. With a free NEETnify account you can attempt this exact paper as a timed test in the real exam interface, then see your score and weak-area analysis.

All 180 questions from the NEET 2019 (May 05) paper — Physics (45), Chemistry (45) and Biology (90) — each with the correct answer (answer key) and a step-by-step solution. Read it free online, or attempt the full paper as a timed mock test.Physics PYQs 2019 Chemistry PYQs 2019 Biology PYQs 2019

Questions: 180
Physics: 45
Chemistry: 45
Biology: 90

Chemistry45 questions

Q46Single correctChemical Bonding and Molecular Structure

The number of sigma (

σ

) and pi (

π

) bonds in pent-2-en-4-yne is

(1)

10 σ

bonds and

3 π

bonds

(2)

8 σ

bonds and

5 π

bonds

(3)

11 σ

bonds and

2 π

bonds

(4)

13 σ

bonds and no

π

bonds

Q47Single correctHydrocarbons / Aromatic Chemistry

The structure of intermediate A in the following reaction, is

Cumene reacts with O2 to give A, which with H+ and water gives phenol and acetone

(1)

(2)

(3)

(4)

Q48Single correctThe p-Block Elements

The correct structure of tribromooctaoxide is

(1)

Br-Br-Br chain with all eight oxygens doubly bonded and no charges

(2)

Br-Br-Br chain with three singly bonded negative oxygens, one on the middle bromine and two on the right bromine

(3)

Br-Br-Br chain with four singly bonded negative oxygens, two on each end bromine

(4)

Br-Br-Br chain with three singly bonded negative oxygens, two on the middle bromine and one on the right bromine

Q49Single correctStructure of Atom

4d, 5p, 5f and 6p orbitals are arranged in the order of decreasing energy. The correct option is

(1)

5 f > 6 p > 5 p > 4 d

(2)

6 p > 5 f > 5 p > 4 d

(3)

6 p > 5 f > 4 d > 5 p

(4)

5 f > 6 p > 4 d > 5 p

Q50Single correctRedox Reactions

Which of the following reactions are disproportionation reaction?
(a)

2 Cu^{+} ⟶ Cu^{2 +} + Cu^{0}

(b)

3 MnO_{4}^{2 -} + 4 H^{+} ⟶ 2 MnO_{4}^{-} + MnO_{2} + 2 H_{2} O

(c)

2 KMnO_{4} ⟶ K_{2} MnO_{4} + MnO_{2} + O_{2}

(d)

2 MnO_{4} + 3 Mn^{2 +} + 2 H_{2} O ⟶ 5 MnO_{2} + 4 H^{+}

Select the correct option from the following

(1)

(a) and (b) only

(2)

(a), (b) and (c)

(3)

(a), (c) and (d)

(4)

(a) and (d) only

Q51Single correctThermodynamics

Under isothermal condition, a gas at 300 K expands from 0.1 L to 0.25 L against a constant external pressure of 2 bar. The work done by the gas is
(Given that 1 L bar = 100 J)

(1)

- 30 J

(2)

5 kJ

(3)

25 J

(4)

30 J

Q52Single correctEnvironmental Chemistry

Among the following, the one that is not a green house gas is

(1)

Nitrous oxide

(2)

Methane

(3)

Ozone

(4)

Sulphur dioxide

Q53Single correctElectrochemistry

For the cell reaction

2 Fe^{3 +} (a q) + 2 I^{-} (a q) ⟶ 2 Fe^{2 +} (a q) + I_{2} (a q)

E_{cell}^{\circ} = 0.24

V at 298 K. The standard Gibbs energy (

Δ_{r} G^{\circ}

) of the cell reaction is
[Given that Faraday constant F = 96500 C mo

l^{- 1}

]

(1)

- 46.32 kJ mol^{- 1}

(2)

- 23.16 kJ mol^{- 1}

(3)

46.32 kJ mol^{- 1}

(4)

23.16 kJ mol^{- 1}

Q54Single correctBiomolecules / s-Block Elements

Enzymes that utilize ATP in phosphate transfer require an alkaline earth metal (M) as the cofactor. M is :

(1)

(2)

(3)

(4)

Q55Single correctHydrocarbons

The most suitable reagent for the following conversion, is

But-2-yne converted to cis-2-butene, drawn with both methyl groups on the same side of the double bond

(1)

Na/liquid N

H_{3}

(2)

H_{2}

, Pd/C, quinoline

(3)

ZnHCl

(4)

g^{2 +}

^{+}

H_{2}

Q56Single correctThe p-Block Elements (Group 16)

Which is the correct thermal stability order for

H_{2}

E (E = O, S, Se, Te and Po)?

(1)

H_{2} S < H_{2} O < H_{2} Se < H_{2} Te < H_{2} Po

(2)

H_{2} O < H_{2} S < H_{2} Se < H_{2} Te < H_{2} Po

(3)

H_{2} Po < H_{2} Te < H_{2} Se < H_{2} S < H_{2} O

(4)

H_{2} Se < H_{2} Te < H_{2} Po < H_{2} O < H_{2} S

Q57Single correctThe p-Block Elements (Group 14)

Which of the following is incorrect statement?

(1)

F_{4}

is covalent in nature

(2)

SiC

l_{4}

is easily hydrolysed

(3)

X_{4}

(X = F, Cl, Br, I) is more stable than Ge

X_{2}

(4)

F_{4}

is ionic in nature

Q58Single correctThe p-Block Elements / General Principles of Metallurgy

Match the following :

List I	List II
(a). Pure nitrogen	(i). Chlorine
(b). Haber process	(ii). Sulphuric acid
(c). Contact process	(iii). Ammonia
(d). Deacon's process	(iv). Sodium azide or Barium azide

(1)

(a)(i) (b)(ii) (c)(iii) (d)(iv)

(2)

(a)(ii) (b)(iv) (c)(i) (d)(iii)

(3)

(a)(iii) (b)(iv) (c)(ii) (d)(i)

(4)

(a)(iv) (b)(iii) (c)(ii) (d)(i)

Q59Single correctChemical Bonding and Molecular Structure

Which of the following diatomic molecular species has only

π

bonds according to Molecular Orbital Theory?

(1)

O_{2}

(2)

N_{2}

(3)

C_{2}

(4)

Be_{2}

Q60Single correctClassification of Elements and Periodicity in Properties

For the second period elements the correct increasing order of first ionisation enthalpy is:

(1)

Li < Be < B < C < N < O < F < Ne

(2)

Li < B < Be < C < O < N < F < Ne

(3)

Li < B < Be < C < N < O < F < Ne

(4)

Li < Be < B < C < O < N < F < Ne

Q61Single correctPolymers

The biodegradable polymer is:

(1)

Nylon-6,6

(2)

Nylon-2-Nylon-6

(3)

Nylon-6

(4)

Buna-S

Q62Single correctEquilibrium

pH of a saturated solution of Ca(OH

)_{2}

is 9. The solubility product (

K_{s p}

) of Ca(OH

)_{2}

(1)

0.5 \times 1 0^{- 15}

(2)

0.25 \times 1 0^{- 10}

(3)

0.125 \times 1 0^{- 15}

(4)

0.5 \times 1 0^{- 10}

Q63Single correctChemical Kinetics

If the rate constant for a first order reaction is k, the time (t) required for the completion of 99% of the reaction is given by:

(1)

t = 0.693/ k

(2)

t = 6.909/ k

(3)

t = 4.606/ k

(4)

t = 2.303/ k

Q64Single correctBiomolecules

The non-essential amino acid among the following is:

(1)

Valine

(2)

Leucine

(3)

Alanine

(4)

Lysine

Q65Single correctHaloalkanes and Haloarenes / Aromatic Chemistry

Among the following, the reaction that proceeds through an electrophilic substitution, is

(1)

Benzenediazonium chloride with Cu2Cl2 giving chlorobenzene and N2

(2)

Benzene plus Cl2 with AlCl3 giving chlorobenzene and HCl

(3)

Benzene plus Cl2 under UV light giving a cyclohexane ring bearing six Cl atoms

(4)

Benzyl alcohol plus HCl on heating giving benzyl chloride and water

Q66Single correctSolutions

The mixture that forms maximum boiling azeotrope is:

(1)

Water + Nitric acid

(2)

Ethanol + Water

(3)

Acetone + Carbon disulphide

(4)

Heptane + Octane

Q67Single correctChemical Kinetics

For the chemical reaction

N_{2} (g) + 3 H_{2} (g) ⇌ 2 NH_{3} (g)

The correct option is:

(1)

- \frac{1}{3} \frac{d [ H _{2} ]}{d t} = - \frac{1}{2} \frac{d [ NH _{3} ]}{d t}

(2)

- \frac{d [ N _{2} ]}{d t} = 2 \frac{d [ NH _{3} ]}{d t}

(3)

- \frac{d [ N _{2} ]}{d t} = \frac{1}{2} \frac{d [ NH _{3} ]}{d t}

(4)

3 \frac{d [ H _{2} ]}{d t} = 2 \frac{d [ NH _{3} ]}{d t}

Q68Single correctEquilibrium / Stoichiometry

The number of moles of hydrogen molecules required to produce 20 moles of ammonia through Haber's process is :

(1)

(2)

(3)

(4)

Q69Single correctAldehydes, Ketones and Carboxylic Acids

The compound that is most difficult to protonate is :

(1)

(2)

(3)

(4)

Q70Single correctSolutions

For an ideal solution, the correct option is :

(1)

Δ_{mix} S = 0

at constant T and P

(2)

Δ_{mix} V \neq = 0

at constant T and P

(3)

Δ_{mix} H = 0

at constant T and P

(4)

Δ_{mix} G = 0

at constant T and P

Q71Single correctEquilibrium

Conjugate base for Brønsted acids

H_{2} O

and HF are :

(1)

OH^{-}

and

H_{2} F^{+}

, respectively

(2)

H_{3} O^{+}

and

F^{-}

, respectively

(3)

OH^{-}

and

F^{-}

, respectively

(4)

H_{3} O^{+}

and

H_{2} F^{+}

, respectively

Q72Single correctSurface Chemistry

Which mixture of the solutions will lead to the formation of negatively charged colloidal

[AgI] I^{-}

sol ?

(1)

50 mL of 1 M

AgNO_{3}

+ 50 mL of 1.5 M KI

(2)

50 mL of 1 M

AgNO_{3}

+ 50 mL of 2 M KI

(3)

50 mL of 2 M

AgNO_{3}

+ 50 mL of 1.5 M KI

(4)

50 mL of 0.1 M

AgNO_{3}

+ 50 mL of 0.1 M KI

Q73Single correctChemistry in Everyday Life

Among the following, the narrow spectrum antibiotic is :

(1)

Penicillin G

(2)

Ampicillin

(3)

Amoxycillin

(4)

Chloramphenicol

Q74Single correctHydrocarbons

An alkene "A" on reaction with

O_{3}

and

Zn-H_{2} O

gives propanone and ethanal in equimolar ratio. Addition of HCl to alkene "A" gives "B" as the major product. The structure of product "B" is :

(1)

Cl-CH2-CH2-CH with a CH3 above and a CH3 below

(2)

H3C-CH2-CH-CH3 with a CH2Cl above the third carbon

(3)

H3C-CH2-C-CH3 with a CH3 above and a Cl below the third carbon

(4)

H3C-CH-CH-CH3 with a CH3 above the third carbon and a Cl below the second

Q75Single correctCoordination Compounds

What is the correct electronic configuration of the central atom in

K_{4} [Fe(CN)_{6}]

based on crystal field theory?

(1)

t_{2 g}^{4} e_{g}^{2}

(2)

t_{2 g}^{6} e_{g}^{0}

(3)

e^{3} t_{2}^{3}

(4)

e^{4} t_{2}^{2}

Q76Single correctThe p-Block Elements

Identify the incorrect statement related to

PCl_{5}

from the following:

(1)

Three equatorial P-Cl bonds make an angle of 120° with each other

(2)

Two axial P-Cl bonds make an angle of 180° with each other

(3)

Axial P-Cl bonds are longer than equatorial P-Cl bonds

(4)

PCl_{5}

molecule is non-reactive

Q77Single correctEquilibrium

Which will make basic buffer?

(1)

50 mL of 0.1 M NaOH + 25 mL of 0.1 M

CH_{3} COOH

(2)

100 mL of 0.1 M

CH_{3} COOH

+ 100 mL of 0.1 M NaOH

(3)

100 mL of 0.1 M HCl + 200 mL of 0.1 M

NH_{4} OH

(4)

100 mL of 0.1 M HCl + 100 mL of 0.1 M NaOH

Q78Single correctAmines / Carboxylic Acids

The major product of the following reaction is :

Benzene ring bearing two ortho COOH groups, plus NH3, under strong heating

(1)

Benzene ring bearing ortho COOH and CONH2

(2)

Benzene ring fused to a five-membered ring with two C=O groups and an NH

(3)

(4)

Benzene ring bearing two ortho NH2 groups

Q79Single correctThe p-Block Elements

Match the Xenon compounds in Column-I with its structure in Column-II and assign the correct code:

Column-I	Column-II
(a). $XeF_{4}$	(i). Pyramidal
(b). $XeF_{6}$	(ii). Square planar
(c). $XeOF_{4}$	(iii). Distorted octahedral
(d). $XeO_{3}$	(iv). Square pyramidal

(1)

(a) (i) (b) (ii) (c) (iii) (d) (iv)

(2)

(a) (ii) (b) (iii) (c) (iv) (d) (i)

(3)

(a) (ii) (b) (iii) (c) (i) (d) (iv)

(4)

(a) (iii) (b) (iv) (c) (i) (d) (ii)

Q80Single correctThe d- and f-Block Elements

The manganate and permanganate ions are tetrahedral, due to :

(1)

The

π

-bonding involves overlap of p-orbitals of oxygen with d-orbitals of manganese

(2)

There is no

π

-bonding

(3)

The

π

-bonding involves overlap of p-orbitals of oxygen with p-orbitals of manganese

(4)

The

π

-bonding involves overlap of d-orbitals of oxygen with d-orbitals of manganese

Q81Single correctThe p-Block Elements

Which of the following species is not stable?

(1)

[SiF_{6}]^{2 -}

(2)

[GeCl_{6}]^{2 -}

(3)

[Sn(OH)_{6}]^{2 -}

(4)

[SiCl_{6}]^{2 -}

Q82Single correctElectrochemistry

For a cell involving one electron

E_{cell}^{\circ} = 0.59 V

at 298 K, the equilibrium constant for the cell reaction is :
Given that

\frac{2.303 RT}{F} = 0.059 V

at T = 298 K

(1)

1.0 \times 1 0^{2}

(2)

1.0 \times 1 0^{5}

(3)

1.0 \times 1 0^{10}

(4)

1.0 \times 1 0^{30}

Q83Single correctThe s-Block Elements

Which of the following is an amphoteric hydroxide?

(1)

Sr(OH)_{2}

(2)

Ca(OH)_{2}

(3)

Mg(OH)_{2}

(4)

Be(OH)_{2}

Q84Single correctStates of Matter

A gas at 350 K and 15 bar has molar volume 20 percent smaller than that for an ideal gas under the same conditions. The correct option about the gas and its compressibility factor (Z) is :

(1)

Z > 1 and attractive forces are dominant

(2)

Z > 1 and repulsive forces are dominant

(3)

Z < 1 and attractive forces are dominant

(4)

Z < 1 and repulsive forces are dominant

Q85Single correctThe Solid State

A compound is formed by cation C and anion A. The anions form hexagonal close packed (hcp) lattice and the cations occupy 75% of octahedral voids. The formula of the compound is :

(1)

C_{2} A_{3}

(2)

C_{3} A_{2}

(3)

C_{3} A_{4}

(4)

C_{4} A_{3}

Q86Single correctThermodynamics

In which case change in entropy is negative?

(1)

Evaporation of water

(2)

Expansion of a gas at constant temperature

(3)

Sublimation of solid to gas

(4)

2 H(g) \to H_{2} (g)

Q87Single correctStructure of Atom

Which of the following series of transitions in the spectrum of hydrogen atom fall in visible region?

(1)

Lyman series

(2)

Balmer series

(3)

Paschen series

(4)

Brackett series

Q88Single correctThe s-Block Elements / Hydrogen

The method used to remove temporary hardness of water is :

(1)

Calgon's method

(2)

Clark's method

(3)

Ion-exchange method

(4)

Synthetic resins method

Q89Single correctThe d- and f-Block Elements

Which one is malachite from the following?

(1)

CuFeS_{2}

(2)

Cu(OH)_{2}

(3)

Fe_{3} O_{4}

(4)

CuCO_{3} \cdot Cu(OH)_{2}

Q90Single correctAmines

The correct order of the basic strength of methyl substituted amines in aqueous solution is :

(1)

(CH_{3})_{2} NH > CH_{3} NH_{2} > (CH_{3})_{3} N

(2)

(CH_{3})_{3} N > CH_{3} NH_{2} > (CH_{3})_{2} NH

(3)

(CH_{3})_{3} N > (CH_{3})_{2} NH > CH_{3} NH_{2}

(4)

CH_{3} NH_{2} > (CH_{3})_{2} NH > (CH_{3})_{3} N

Biology90 questions

Q91Single correctEnvironmental Issues

The Earth Summit held in Rio de Janeiro in 1992 was called

(1)

to reduce

CO_{2}

emissions and global warming

(2)

for conservation of biodiversity and sustainable utilization of its benefits

(3)

to assess threat posed to native species by invasive weed species

(4)

for immediate steps to discontinue use of CFCs that were damaging the ozone layer

Q92Single correctReproduction in Human / Animal Husbandry

Colostrum the yellowish fluid, secreted by mother during the initial days of lactation is very essential to impart immunity to the new born infants because it contains

(1)

Natural killer cells

(2)

Monocytes

(3)

Macrophages

(4)

Immunoglobulin A

Q93Single correctAnatomy of Flowering Plants

Grass leaves curl inwards during very dry weather. Select the most appropriate reason from the following

(1)

Closure of stomata

(2)

Flaccidity of bulliform cells

(3)

Shrinkage of air spaces in spongy mesophyll

(4)

Tyloses in vessels

Q94Single correctPrinciples of Inheritance and Variation

The shorter and longer arms of a submetacentric chromosome are referred to as

(1)

s-arm and l-arm respectively

(2)

p-arm and q-arm respectively

(3)

q-arm and p-arm respectively

(4)

m-arm and n-arm respectively

Q95Single correctRespiration in Plants

Respiratory Quotient (RQ) value of tripalmitin is

(1)

0.9

(2)

0.7

(3)

0.07

(4)

0.09

Q96Single correctMicrobes in Human Welfare

Which of the following is a commercial blood cholesterol lowering agent?

(1)

Cyclosporin A

(2)

Statin

(3)

Streptokinase

(4)

Lipases

Q97Single correctDigestion and Absorption

Match the following structures with their respective location in organs
(a) Crypts of Lieberkuhn (i) Pancreas
(b) Glisson's Capsule (ii) Duodenum
(c) Islets of Langerhans (iii) Small intestine
(d) Brunner's Glands (iv) Liver
Select the correct option from the following

(1)

(a) (iii) (b) (i) (c) (ii) (d) (iv)

(2)

(a) (ii) (b) (iv) (c) (i) (d) (iii)

(3)

(a) (iii) (b) (iv) (c) (i) (d) (ii)

(4)

(a) (iii) (b) (ii) (c) (i) (d) (iv)

Q98Single correctBiodiversity and Conservation

Which of the following is the most important cause for animals and plants being driven to extinction?

(1)

Habitat loss and fragmentation

(2)

Drought and floods

(3)

Economic exploitation

(4)

Alien species invasion

Q99Single correctNeural Control and Coordination

Which part of the brain is responsible for thermoregulation?

(1)

Cerebrum

(2)

Hypothalamus

(3)

Corpus callosum

(4)

Medulla oblongata

Q100Single correctAnimal Kingdom

Consider following features
(a) Organ system level of organisation
(b) Bilateral symmetry
(c) True coelomates with segmentation of body
Select the correct option of animal groups which possess all the above characteristics

(1)

Annelida, Arthropoda and Chordata

(2)

Annelida, Arthropoda and Mollusca

(3)

Arthropoda, Mollusca and Chordata

(4)

Annelida, Mollusca and Chordata

Q101Single correctAnimal Kingdom / Cockroach

Select the correct sequence of organs in the alimentary canal of cockroach starting from mouth

(1)

Pharynx

\to

Oesophagus

\to

Crop

\to

Gizzard

\to

Ileum

\to

Colon

\to

Rectum

(2)

Pharynx

\to

Oesophagus

\to

Gizzard

\to

Crop

\to

Ileum

\to

Colon

\to

Rectum

(3)

Pharynx

\to

Oesophagus

\to

Gizzard

\to

Ileum

\to

Crop

\to

Colon

\to

Rectum

(4)

Pharynx

\to

Oesophagus

\to

Ileum

\to

Crop

\to

Gizzard

\to

Colon

\to

Rectum

Q102Single correctEnvironmental Issues

Which of the following pairs of gases is mainly responsible for green house effect?

(1)

Ozone and Ammonia

(2)

Oxygen and Nitrogen

(3)

Nitrogen and Sulphur dioxide

(4)

Carbon dioxide and Methane

Q103Single correctLocomotion and Movement

Which of the following muscular disorders is inherited?

(1)

Tetany

(2)

Muscular dystrophy

(3)

Myasthenia gravis

(4)

Botulism

Q104Single correctBreathing and Exchange of Gases

The ciliated epithelial cells are required to move particles or mucus in a specific direction. In humans, these cells are mainly present in

(1)

Bile duct and Bronchioles

(2)

Fallopian tubes and Pancreatic duct

(3)

Eustachian tube and Salivary duct

(4)

Bronchioles and Fallopian tubes

Q105Single correctBody Fluids and Circulation

Match the Column-I with Column-II

Column-I	Column-II
(a). P - wave	(i). Depolarisation of ventricles
(b). QRS complex	(ii). Repolarisation of ventricles
(c). T - wave	(iii). Coronary ischemia
(d). Reduction in the size of T-wave	(iv). Depolarisation of atria
	(v). Repolarisation of atria

(1)

(a)-(iv), (b)-(i), (c)-(ii), (d)-(iii)

(2)

(a)-(iv), (b)-(i), (c)-(ii), (d)-(v)

(3)

(a)-(ii), (b)-(i), (c)-(v), (d)-(iii)

(4)

(a)-(ii), (b)-(iii), (c)-(v), (d)-(iv)

Q106Single correctBiodiversity and Conservation

Which one of the following is not a method of in\ situ conservation of biodiversity?

(1)

Biosphere Reserve

(2)

Wildlife Sanctuary

(3)

Botanical Garden

(4)

Sacred Grove

Q107Single correctOrganisms and Populations / Evolution

In a species, the weight of newborn ranges from 2 to 5 kg. 97% of the newborn with an average weight between 3 to 3.3 kg survive whereas 99% of the infants born with weight from 2 to 2.5 kg or 4.5 to 5 kg die. Which type of selection process is taking place?

(1)

Directional Selection

(2)

Stabilizing Selection

(3)

Disruptive Selection

(4)

Cyclical Selection

Q108Single correctCell Cycle and Cell Division

The correct sequence of phases of cell cycle is

(1)

M \to G_{1} \to G_{2} \to S

(2)

G_{1} \to G_{2} \to S \to M

(3)

S \to G_{1} \to G_{2} \to M

(4)

G_{1} \to S \to G_{2} \to M

Q109Single correctChemical Coordination and Integration

How does steroid hormone influence the cellular activities?

(1)

Changing the permeability of the cell membrane

(2)

Binding to DNA and forming a gene-hormone complex

(3)

Activating cyclic AMP located on the cell membrane

(4)

Using aquaporin channels as second messenger

Q110Single correctCell - The Unit of Life

Which of the following statements is not correct?

(1)

Lysosomes have numerous hydrolytic enzymes

(2)

The hydrolytic enzymes of lysosomes are active under acidic pH

(3)

Lysosomes are membrane bound structures

(4)

Lysosomes are formed by the process of packaging in the endoplasmic reticulum

Q111Single correctSexual Reproduction in Flowering Plants

Which one of the following statements regarding post-fertilization development in flowering plants is incorrect?

(1)

Ovary develops into fruit

(2)

Zygote develops into embryo

(3)

Central cell develops into endosperm

(4)

Ovules develop into embryo sac

Q112Single correctBiology in Human Welfare / Plant products

Concanavalin A is

(1)

an alkaloid

(2)

an essential oil

(3)

a lectin

(4)

a pigment

Q113Single correctMicrobes in Human Welfare / Biotechnology

Which one of the following equipments is essentially required for growing microbes on a large scale, for industrial production of enzymes?

(1)

BOD incubator

(2)

Sludge digester

(3)

Industrial oven

(4)

Bioreactor

Q114Single correctBiomolecules

Consider the following statement :
(A) Coenzyme or metal ion that is tightly bound to enzyme protein is called prosthetic group.
(B) A complete catalytic active enzyme with its bound prosthetic group is called apoenzyme.
Select the correct option.

(1)

Both (A) and (B) are true.

(2)

(A) is true but (B) is false.

(3)

Both (A) and (B) are false.

(4)

(A) is false but (B) is true.

Q115Single correctBiomolecules

Purines found both in DNA and RNA are

(1)

Adenine and thymine

(2)

Adenine and guanine

(3)

Guanine and cytosine

(4)

Cytosine and thymine

Q116Single correctHuman Reproduction

Select the correct sequence for transport of sperm cells in male reproductive system.

(1)

Testis

\to

Epididymis

\to

Vasa efferentia

\to

Rete testis

\to

Inguinal canal

\to

Urethra

(2)

Seminiferous tubules

\to

Rete testis

\to

Vasa efferentia

\to

Epididymis

\to

Vas deferens

\to

Ejaculatory duct

\to

Urethra

\to

Urethral meatus

(3)

Seminiferous tubules

\to

Vasa efferentia

\to

Epididymis

\to

Inguinal canal

\to

Urethra

(4)

Testis

\to

Epididymis

\to

Vasa efferentia

\to

Vas deferens

\to

Ejaculatory duct

\to

Inguinal canal

\to

Urethra

\to

Urethral meatus

Q117Single correctEvolution

Match the hominids with their correct brain size :

Column-I	Column-II
(a). $Homo habilis$	(i). 900 cc
(b). $Homo neanderthalensis$	(ii). 1350 cc
(c). $Homo erectus$	(iii). 650-800 cc
(d). $Homo sapiens$	(iv). 1400 cc

(1)

(a)-(iii), (b)-(i), (c)-(iv), (d)-(ii)

(2)

(a)-(iii), (b)-(ii), (c)-(i), (d)-(iv)

(3)

(a)-(iii), (b)-(iv), (c)-(i), (d)-(ii)

(4)

(a)-(iv), (b)-(iii), (c)-(i), (d)-(ii)

Q118Single correctEvolution

Variations caused by mutation, as proposed by Hugo de Vries are

(1)

random and directional

(2)

random and directionless

(3)

small and directional

(4)

small and directionless

Q119Single correctCell - The Unit of Life

Which of the following pair of organelles does not contain DNA?

(1)

Mitochondria and Lysosomes

(2)

Chloroplast and Vacuoles

(3)

Lysosomes and Vacuoles

(4)

Nuclear envelope and Mitochondria

Q120Single correctBreathing and Exchange of Gases

Due to increasing air-borne allergens and pollutants, many people in urban areas are suffering from respiratory disorder causing wheezing due to

(1)

benign growth on mucous lining of nasal cavity

(2)

inflammation of bronchi and bronchioles

(3)

proliferation of fibrous tissues and damage of the alveolar walls

(4)

reduction in the secretion of surfactants by pneumocytes.

Q121Single correctPrinciples of Inheritance and Variation

Select the incorrect statement.

(1)

Male fruit fly is heterogametic

(2)

In male grasshoppers 50% of sperms have no sex-chromosome

(3)

In domesticated fowls, sex of progeny depends on the type of sperm rather than egg

(4)

Human males have one of their sex-chromosome much shorter than the other

Q122Single correctBiotechnology - Principles and Processes

DNA precipitation out of a mixture of biomolecules can be achieved by treatment with

(1)

Isopropanol

(2)

Chilled ethanol

(3)

Methanol at room temperature

(4)

Chilled chloroform

Q123Single correctMicrobes in Human Welfare

Select the correct group of biocontrol agents.

(1)

Bacillus thuringiensis

, Tobacco mosaic virus, Aphids

(2)

Trichoderma

Baculovirus

Bacillus thuringiensis

(3)

Oscillatoria

Rhizobium

Trichoderma

(4)

Nostoc

Azospirillium

Nucleopolyhedrovirus

Q124Single correctStrategies for Enhancement in Food Production

Select the incorrect statement.

(1)

Inbreeding increases homozygosity

(2)

Inbreeding is essential to evolve purelines in any animal.

(3)

Inbreeding selects harmful recessive genes that reduce fertility and productivity

(4)

Inbreeding helps in accumulation of superior genes and elimination of undesirable genes

Q125Single correctMicrobes in Human Welfare

Match the following organisms with the products they produce. Select the correct option.

List - I	List - II
(a). $Lactobacillus$	(i). Cheese
(b). $Saccharomyces cerevisiae$	(ii). Curd
(c). $Aspergillus niger$	(iii). Citric Acid
(d). $Acetobacter aceti$	(iv). Bread
	(v). Acetic Acid

(1)

(a)-(ii), (b)-(iv), (c)-(v), (d)-(iii)

(2)

(a)-(ii), (b)-(iv), (c)-(iii), (d)-(v)

(3)

(a)-(iii), (b)-(iv), (c)-(v), (d)-(i)

(4)

(a)-(ii), (b)-(i), (c)-(iii), (d)-(v)

Q126Single correctTransport in Plants

What is the direction of movement of sugars in phloem?

(1)

Non-multidirectional

(2)

Upward

(3)

Downward

(4)

Bi-directional

Q127Single correctSexual Reproduction in Flowering Plants

In some plants, the female gamete develops into embryo without fertilization. This phenomenon is known as

(1)

Autogamy

(2)

Parthenocarpy

(3)

Syngamy

(4)

Parthenogenesis

Q128Single correctSexual Reproduction in Flowering Plants

Persistent nucellus in the seed is known as

(1)

Chalaza

(2)

Perisperm

(3)

Hilum

(4)

Tegmen

Q129Single correctPrinciples of Inheritance and Variation

What map unit (Centimorgan) is adopted in the construction of genetic maps?

(1)

A unit of distance between two expressed genes representing 10% cross over.

(2)

A unit of distance between two expressed genes representing 100% cross over.

(3)

A unit of distance between genes on chromosomes, representing 1% cross over.

(4)

A unit of distance between genes on chromosomes, representing 50% cross over.

Q130Single correctBody Fluids and Circulation

What would be the heart rate of a person if the cardiac output is 5 L, blood volume in the ventricles at the end of diastole is 100 mL and at the end of ventricular systole is 50 mL?

(1)

50 beats per minute

(2)

75 beats per minute

(3)

100 beats per minute

(4)

125 beats per minute

Q131Single correctMicrobes in Human Welfare

Thiobacillus

is a group of bacteria helpful in carrying out

(1)

Nitrogen fixation

(2)

Chemoautotrophic fixation

(3)

Nitrification

(4)

Denitrification

Q132Single correctExcretory Products and their Elimination

Which of the following factors is responsible for the formation of concentrated urine?

(1)

Low levels of antidiuretic hormone

(2)

Maintaining hyperosmolarity towards inner medullary interstitium in the kidneys.

(3)

Secretion of erythropoietin by Juxtaglomerular complex

(4)

Hydrostatic pressure during glomerular filtration

Q133Single correctCell - The Unit of Life

Which of the following statements regarding mitochondria is incorrect?

(1)

Outer membrane is permeable to monomers of carbohydrates, fats and proteins.

(2)

Enzymes of electron transport are embedded in outer membrane.

(3)

Inner membrane is convoluted with infoldings.

(4)

Mitochondrial matrix contains single circular DNA molecule and ribosomes.

Q134Single correctTransport in Plants

Xylem translocates

(1)

Water only

(2)

Water and mineral salts only

(3)

Water, mineral salts and some organic nitrogen only

(4)

Water, mineral salts, some organic nitrogen and hormones

Q135Single correctCell Cycle and Cell Division

Cells in

G_{0}

phase :

(1)

exit the cell cycle

(2)

enter the cell cycle

(3)

suspend the cell cycle

(4)

terminate the cell cycle

Q136Single correctAnatomy of Flowering Plants

Which of the statements given below is not true about formation of Annual Rings in trees?

(1)

Annual ring is a combination of spring wood and autumn wood produced in a year

(2)

Differential activity of cambium causes light and dark bands of tissue early and late wood respectively.

(3)

Activity of cambium depends upon variation in climate.

(4)

Annual rings are not prominent in trees of temperate region.

Q137Single correctEcosystem

Which of the following ecological pyramids is generally inverted?

(1)

Pyramid of numbers in grassland

(2)

Pyramid of energy

(3)

Pyramid of biomass in a forest

(4)

Pyramid of biomass in a sea

Q138Single correctSexual Reproduction in Flowering Plants

Placentation in which ovules develop on the inner wall of the ovary or in peripheral part, is

(1)

Basal

(2)

Axile

(3)

Parietal

(4)

Free central

Q139Single correctEnvironmental Issues

Which of the following protocols did aim for reducing emission of chlorofluorocarbons into the atmosphere?

(1)

Montreal Protocol

(2)

Kyoto Protocol

(3)

Gothenburg Protocol

(4)

Geneva Protocol

Q140Single correctReproductive Health

Which of the following contraceptive methods do involve a role of hormone?

(1)

Lactational amenorrhea, Pills Emergency contraceptives

(2)

Barrier method, Lactational amenorrhea, Pills.

(3)

CuT, Pills, Emergency contraceptives.

(4)

Pills, Emergency contraceptives, Barrier methods.

Q141Single correctBreathing and Exchange of Gases

Tidal Volume and Expiratory Reserve Volume of an athlete is 500 mL and 1000 mL, respectively. What will be his Expiratory Capacity if the Residual Volume is 1200 mL?

(1)

1500 mL

(2)

1700 mL

(3)

2200 mL

(4)

2700 mL

Q142Single correctSexual Reproduction in Flowering Plants

What is the fate of the male gametes discharged in the synergid?

(1)

One fuses with egg other(s) degenerate (s) in the synergid.

(2)

All fuse with the egg.

(3)

One fuses with the egg, other(s) fuse(s) with synergid nucleus.

(4)

One fuses with the egg and other fuses with central cell nuclei.

Q143Single correctPlant Growth and Development

What is the site of perception of photoperiod necessary for induction of flowering in plants?

(1)

Lateral buds

(2)

Pulvinus

(3)

Shoot apex

(4)

Leaves

Q144Single correctThe Living World

Select the correctly written scientific name of Mango which was first described by Carolus Linnaeus

(1)

Mangifera\ indica Car. Linn.

(2)

Mangifera\ indica Linn.

(3)

Mangifera\ indica

(4)

Mangifera\ Indica

Q145Single correctBiotechnology - Principles and Processes

Following statements describe the characteristics of the enzyme Restriction Endonuclease. Identify the incorrect statement.

(1)

The enzyme cuts DNA molecule at identified position within the DNA.

(2)

The enzyme binds DNA at specific sites and cuts only one of the two strands.

(3)

The enzyme cuts the sugar-phosphate backbone at specific sites on each strand.

(4)

The enzyme recognizes a specific palindromic nucleotide sequence in the DNA.

Q146Single correctPlant Kingdom

From evolutionary point of view, retention of the female gametophyte with developing young embryo on the parent sporophyte for some time, is first observed in

(1)

Liverworts

(2)

Mosses

(3)

Pteridophytes

(4)

Gymnosperms

Q147Single correctPrinciples of Inheritance and Variation

In Antirrhinum (Snapdragon), a red flower was crossed with a white flower and in

F_{1}

generation pink flowers were obtained. When pink flowers were selfed, the

F_{2}

generation showed white, red and pink flowers. Choose the incorrect statement from the following :

(1)

This experiment does not follow the Principle of Dominance.

(2)

Pink colour in

F_{1}

is due to incomplete dominance.

(3)

Ratio of

F_{2}

\frac{1}{4}

(Red) :

\frac{2}{4}

(Pink) :

\frac{1}{4}

(White)

(4)

Law of Segregation does not apply in this experiment

Q148Single correctRespiration in Plants

Conversion of glucose to glucose-6-phosphate, the first irreversible reaction of glycolysis, is catalyzed by

(1)

Aldolase

(2)

Hexokinase

(3)

Enolase

(4)

Phosphofructokinase

Q149Single correctChemistry in Everyday Life

Drug called 'Heroin' is synthesized by

(1)

methylation of morphine

(2)

acetylation of morphine

(3)

glycosylation of morphine

(4)

nitration of morphine

Q150Single correctReproductive Health

Select the hormone-releasing Intra-Uterine Devices.

(1)

Vaults, LNG-20

(2)

Multiload 375, Progestasert

(3)

Progestasert, LNG-20

(4)

Lippes Loop, Multiload 375

Q151Single correctEvolution

A gene locus has two alleles A, a. If the frequency of dominant allele A is 0.4, then what will be the frequency of homozygous dominant, heterozygous and homozygous recessive individuals in the population?

(1)

0.36(AA); 0.48(Aa); 0.16(aa)

(2)

0.16(AA); 0.24(Aa); 0.36(aa)

(3)

0.16(AA); 0.48(Aa); 0.36(aa)

(4)

0.16(AA); 0.36(Aa); 0.48(aa)

Q152Single correctBiotechnology and its Applications

Which of the following is true for Golden rice?

(1)

It is Vitamin A enriched, with a gene from daffodil

(2)

It is pest resistant, with a gene from Bacillus\ thuringiensis

(3)

It is drought tolerant, developed using

A g ro ba c t er i u m

vector

(4)

It has yellow grains, because of a gene introduced from a primitive variety of rice

Q153Single correctSexual Reproduction in Flowering Plants

Pinus seeds cannot germinate and establish without fungal association. This is because :

(1)

its embryo is immature.

(2)

it has obligate association with mycorrhizae.

(3)

it has very hard seed coat.

(4)

its seeds contain inhibitors that prevent germination.

Q154Single correctMolecular Basis of Inheritance

Which of the following features of genetic code does allow bacteria to produce human insulin by recombinant DNA technology?

(1)

Genetic code is not ambiguous

(2)

Genetic code is redundant

(3)

Genetic code is nearly universal

(4)

Genetic code is specific

Q155Single correctHuman Health and Disease

Which of the following sexually transmitted diseases is not completely curable?

(1)

Gonorrhoea

(2)

Genital warts

(3)

Genital herpes

(4)

Chlamydiasis

Q156Single correctBiological Classification

Which of the following statements is incorrect?

(1)

Viroids lack a protein coat.

(2)

Viruses are obligate parasites.

(3)

Infective constituent in viruses is the protein coat.

(4)

Prions consist of abnormally folded proteins.

Q157Single correctAnimal Kingdom

Match the following organisms with their respective characteristics. Select the correct option from the following :

List - I	List - II
(a). $P i l a$	(i). Flame cells
(b). $B o mb y x$	(ii). Comb plates
(c). $Pl e u ro b r a c hia$	(iii). Radula
(d). $T a e nia$	(iv). Malpighian tubules

(1)

(a)-(iii), (b)-(ii), (c)-(i), (d)-(iv)

(2)

(a)-(iii), (b)-(iv), (c)-(ii), (d)-(i)

(3)

(a)-(ii), (b)-(iv), (c)-(iii), (d)-(i)

(4)

(a)-(iii), (b)-(ii), (c)-(iv), (d)-(i)

Q158Single correctBiotechnology and its Applications

Expressed Sequence Tags (ESTs) refers to :

(1)

Genes expressed as RNA

(2)

Polypeptide expression

(3)

DNA polymorphism

(4)

Novel DNA sequences

Q159Single correctStrategies for Enhancement in Food Production

Which of the following statements is incorrect?

(1)

Morels and truffles are edible delicacies.

(2)

Cl a v i ce p s

is a source of many alkaloids and LSD.

(3)

Conidia are produced exogenously and ascospores endogenously.

(4)

Yeasts have filamentous bodies with long thread-like hyphae.

Q160Single correctBiological Classification

Match Column - I with Column - II. Choose the correct answer from the option given below.

Column - I	Column - II
(a). Saprophyte	(i). Symbiotic association of fungi with plant roots
(b). Parasite	(ii). Decomposition of dead organic materials
(c). Lichens	(iii). Living on living plants or animals
(d). Mycorrhiza	(iv). Symbiotic association of algae and fungi

(1)

(a)-(i), (b)-(ii), (c)-(iii), (d)-(iv)

(2)

(a)-(iii), (b)-(ii), (c)-(i), (d)-(iv)

(3)

(a)-(ii), (b)-(i), (c)-(iii), (d)-(iv)

(4)

(a)-(ii), (b)-(iii), (c)-(iv), (d)-(i)

Q161Single correctChemical Coordination and Integration

Which of the following glucose transporters is insulin-dependent?

(1)

GLUT I

(2)

GLUT II

(3)

GLUT III

(4)

GLUT IV

Q162Single correctHuman Health and Disease

Which of the following immune responses is responsible for rejection of kidney graft?

(1)

Auto-immune response

(2)

Humoral immune response

(3)

Inflammatory immune response

(4)

Cell-mediated immune response

Q163Single correctExcretory Products and their Elimination

Use of an artificial kidney during hemodialysis may result in :
(a) Nitrogenous waste build-up in the body
(b) Non-elimination of excess potassium ions
(c) Reduced absorption of calcium ions from gastro-intestinal tract
(d) Reduced RBC production
Which of the following options is the most appropriate?

(1)

(a) and (b) are correct

(2)

(b) and (c) are correct

(3)

(4)

(a) and (d) are correct

Q164Single correctSensory Perception

Which of the following statements is correct?

(1)

Cornea is an external, transparent and protective proteinaceous covering of the eye-ball.

(2)

Cornea consists of dense connective tissue of elastin and can repair itself.

(3)

Cornea is convex, transparent layer which is highly vascularised.

(4)

Cornea consists of dense matrix of collagen and is the most sensitive portion of the eye.

Q165Single correctPrinciples of Inheritance and Variation

The frequency of recombination between gene pairs on the same chromosome as a measure of the distance between genes was explained by :

(1)

T.H. Morgan

(2)

Gregor J. Mendel

(3)

Alfred Sturtevant

(4)

Sutton Boveri

Q166Single correctMolecular Basis of Inheritance

Match the following genes of the Lac operon with their respective products : Select the correct option.

Column - I	Column - II
a. i gene	i. β-galactosidase
b. z gene	ii. Permease
c. a gene	iii. Repressor
d. y gene	iv. Transacetylase

(1)

(a)-(i), (b)-(iii), (c)-(ii), (d)-(iv)

(2)

(a)-(iii), (b)-(i), (c)-(ii), (d)-(iv)

(3)

(a)-(iii), (b)-(i), (c)-(iv), (d)-(ii)

(4)

(a)-(iii), (b)-(iv), (c)-(i), (d)-(ii)

Q167Single correctPlant Growth and Development

It takes very long time for pineapple plants to produce flowers. Which combination of hormones can be applied to artificially induce flowering in pineapple plants throughout the year to increase yield?

(1)

Auxin and Ethylene

(2)

Gibberellin and Cytokinin

(3)

Gibberellin and Abscisic acid

(4)

Cytokinin and Abscisic acid

Q168Single correctDigestion and Absorption

Identify the cells whose secretion protects the lining of gastro-intestinal tract from various enzymes.

(1)

Chief Cells

(2)

Goblet Cells

(3)

Oxyntic Cells

(4)

Duodenal Cells

Q169Single correctMicrobes in Human Welfare

Which of the following can be used as a biocontrol agent in the treatment of plant disease?

(1)

T r i c h o d er ma

(2)

C h l ore ll a

(3)

A naba e na

(4)

L a c t o ba c i ll u s

Q170Single correctAnatomy of Flowering Plants

Phloem in gymnosperms lacks :

(1)

Albuminous cells and sieve cells

(2)

Sieve tubes only

(3)

Companion cells only

(4)

Both sieve tubes and companion cells

Q171Single correctHuman Reproduction

Extrusion of second polar body from egg nucleus occurs :

(1)

after entry of sperm but before fertilization

(2)

after fertilization

(3)

before entry of sperm into ovum

(4)

simultaneously with first cleavage

Q172Single correctMolecular Basis of Inheritance

Under which of the following conditions will there be no change in the reading frame of following mRNA?

5^{'} AACAGCGGUGCUAUU 3^{'}

(1)

Insertion of G at

5^{t h}

position

(2)

Deletion of G from

5^{t h}

position

(3)

Insertion of A and G at

4^{t h}

and

5^{t h}

positions respectively

(4)

Deletion of GGU from

7^{t h}

8^{t h}

and

9^{t h}

positions

Q173Single correctCell - The Unit of Life

The concept of “

O mni s

ce ll u l a

e

ce ll u l a

” regarding cell division was first proposed by :

(1)

Rudolf Virchow

(2)

Theodor Schwann

(3)

Schleiden

(4)

Aristotle

Q174Single correctMicrobes in Human Welfare

What triggers activation of protoxin to active Bt toxin of

B a c i ll u s

t h u r in g i e n s i s

in boll worm?

(1)

Body temperature

(2)

Moist surface of midgut

(3)

Alkaline pH of gut

(4)

Acidic pH of stomach

Q175Single correctHuman Health and Disease

Identify the correct pair representing the causative agent of typhoid fever and the confirmatory test for typhoid.

(1)

Pl a s m o d i u m

v i v a x

/ UTI test

(2)

St re pt ococc u s

p n e u m o nia e

/ Widal test

(3)

S a l m o n e ll a

t y p hi

/ Anthrone test

(4)

S a l m o n e ll a

t y p hi

/ Widal test

Q176Single correctPrinciples of Inheritance and Variation

What is the genetic disorder in which an individual has an overall masculine development gynaecomastia, and is sterile ?

(1)

Turner's syndrome

(2)

Klinefelter's syndrome

(3)

Edward syndrome

(4)

Down's syndrome

Q177Single correctEnvironmental Issues

Polyblend, a fine powder of recycled modified plastic, has proved to be a good material for :

(1)

Making plastic sacks

(2)

Use as a fertilizer

(3)

Construction of roads

(4)

Making tubes and pipes

Q178Single correctEnvironmental Issues

Which of these following methods is the most suitable for disposal of nuclear waste?

(1)

Shoot the waste into space

(2)

Bury the waste under Antarctic ice-cover

(3)

Dump the waste within rocks under deep ocean

(4)

Bury the waste within rocks deep below the Earth's surface

Q179Single correctChemical Coordination and Integration

Match the following hormones with the respective disease Select the correct option.

Column - I	Column - II
a. Insulin	i. Addison's disease
b. Thyroxin	ii. Diabetes insipidus
c. Corticoids	iii. Acromegaly
d. Growth Hormone	iv. Goitre
	v. Diabetes mellitus

(1)

(a)-(v), (b)-(i), (c)-(ii), (d)-(iii)

(2)

(a)-(ii), (b)-(iv), (c)-(iii), (d)-(i)

(3)

(a)-(v), (b)-(iv), (c)-(i), (d)-(iii)

(4)

(a)-(ii), (b)-(iv), (c)-(i), (d)-(iii)

Q180Single correctLocomotion and Movement

Select the correct option.

(1)

8^{t h}

9^{t h}

and 1

0^{t h}

pairs of ribs articulate directly with the sternum.

(2)

1^{t h}

and 1

2^{t h}

pairs of ribs are connected to the sternum with the help of hyaline cartilage.

(3)

Each rib is a flat thin bone and all the ribs are connected dorsally to the thoracic vertebrae and ventrally to the sternum.

(4)

There are seven pairs of vertebrosternal, three pairs of vertebrochondral and two pairs of vertebral ribs.

Frequently Asked Questions

How many questions are in the NEET 2019 May 05 paper?

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NEET awards +4 marks for each correct answer and −1 for a wrong answer, with 0 for questions left unattempted. The paper covers Physics, Chemistry and Biology across 180 questions for 720 marks.

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Frequently Asked Questions