NEET 2023 Biology Questions and Answers | NEET Zoology Questions (51-85)

51. Which of the following statements are correct regarding female reproductive cycle?

A. In non-primate mammals cyclical changes during reproduction are called oestrus cycle.

B. First menstrual cycle begins at puberty and is called menopause.

C. Lack of menstruation may be indicative of pregnancy.

D. Cyclic menstruation extends between menarche and menopause.

Choose the most appropriate answer from the options given below.

(1) A and B only

(2) A, B and C only

(3) A, C and D only

(4) A and D only

Answer (3)

52. Given below are two statements: one is labelled as Assertion A and other is labelled as Reason R.

Assertion A : Amniocentesis for sex determination is one of the strategies of Reproductive and Child HealthCare Programme.

Reason R : Ban on amniocentesis checks increasing menace of female foeticide.

In the light of the above statements, choose the correct answer from the options given below.

(1) Both A and R are true and R is NOT the correct explanation of A.

(2) A is true but R is false.

(3) A is false but R is true.

(4) Both A and R are true and R is the correct explanation of A.

Answer (3)

NEET Biology Questions and Answers | NEET Zoology (86-100)53. Match List I with List II.

List I    (Interacting species)                                              List II   (Name of interaction)

A. A Leopard and a Lion in a forest/grassland           I. Competition

B. A Cuckoo laying egg in a Crow’s nest                  II. Brood parasitism

C. Fungi and root of a higher plant in Mycorrhizae  III. Mutualism

D. A cattle egret and a Cattle in a field                      IV. Commensalism

Choose the correct answer from the options given below.

(1) A-I, B-II, C-IV, D-III

(2) A-III, B-IV, C-I, D-II

(3) A-II, B-III, C-I, D-IV

(4) A-I, B-II, C-III, D-IV

Answer (4)

54. Vital capacity of lung is _________.

(1) IRV + ERV + TV + RV

(2) IRV + ERV + TV – RV

(3) IRV + ERV + TV

(4) IRV + ERV

Answer (3)

55. Which one of the following common sexually transmitted diseases is completely curable when detected early and treated properly?

(1) Gonorrhoea

(2) Hepatitis-B

(3) HIV Infection

(4) Genital herpes

Answer (1)

56. Math List I with List II.

List I           List II

A. CCK   I. Kidney

B. GIP     II. Heart

C. ANF   III. Gastric gland

D. ADH IV. Pancreas

Choose the correct answer from the options given below :

(1) A-III, B-II, C-IV, D-I

(2) A-II, B-IV, C-I, D-III

(3) A-IV, B-II, C-III, D-I

(4) A-IV, B-III, C-II, D-I

Answer (4)

57. Math List I with List II.

List I                           List II

A. Ringworm        I. Haemophilus influenzae

B. Filariasis         II. Trichophyton

C. Malaria          III. Wuchereria bancrofti

D. Pneumonia IV. Plasmodium vivax

Choose the correct answer from the options given below :

(1) A-II, B-III, C-I, D-IV

(2) A-III, B-II, C-I, D-IV

(3) A-III, B-II, C-IV, D-I

(4) A-II, B-III, C-IV, D-I

Answer (4)

58. Math List I with List II.

List I                       List II

A. P-wave I. Beginning of systole

B. Q-wave II. Repolarisation of ventricles

C. QRS complex III. Depolarisation of atria

D. T-wave IV. Depolarisation of ventricles

Choose the correct answer from the options given below :

(1) A-IV, B-III, C-II, D-I

(2) A-II, B-IV, C-I, D-III

(3) A-I, B-II, C-III, D-IV

(4) A-III, B-I, C-IV, D-II

Answer (4)

59. In which blood corpuscles, the HIV undergoes replication and produces progeny viruses?

(1) B-lymphocytes

(2) Basophils

(3) Eosinophils

(4) TH cells

Answer (4)

60. Given below are two statements :

Statement I : Low temperature preserves the enzyme in a temporarily inactive state whereas high temperature destroys enzymatic activity because proteins are denatured by heat.

Statement II : When the inhibitor closely resembles the substrate in its molecular structure and inhibits the activity of the enzyme, it is known as competitive inhibitor.

In the light of the above statements, choose the correct answer from the options given below :

(1) Both Statement I and Statement II are false.

(2) Statement I is true but Statement II is flase.

(3) Statement I is false but Statement II is true.

(4) Both Statement I and Statement II are true.

Answer (4)

61. Given below are two statements:

Statement I: Ligaments are dense irregular tissue.

Statement II: Cartilage is dense regular tissue.

In the light of the above statements, choose the correct answer from the options given below:

(1) Both Statement I and Statement II are false

(2) Statement I is true but Statement II is false

(3) Statement I is false but Statement II is true

(4) Both Statement I and Statement II are true

Answer (1)

62. Which of the following are NOT considered as the part of endomembrane system?

A. Mitochondria

B. Endoplasmic reticulum

C. Chloroplasts

D. Golgi complex

E. Peroxisomes

Choose the most appropriate answer from the options given below:

(1) A, C and E only

(2) A and D only

(3) A, D and E only

(4) B and D only

Answer (1)

63. Given below are two statements:

Statement I: A protein is imagined as a line, the left end represented by first amino acid (C-terminal) and

the right end represented by last amino acid (N-terminal).

Statement II: Adult human haemoglobin, consists of 4 subunits (two subunits of α type and two subunits

of β type.)

In the light of the above statements, choose the correct answer from the options given below:

(1) Both Statement I and Statement II are false.

(2) Statement I is true but Statement II is false.

(3) Statement I is false but Statement II is true.

(4) Both Statement I and Statement II are true

Answer (3)

64. Broad palm with single palm crease is visible in a person suffering from-

(1) Turner’s syndrome

(2) Klinefelter’s syndrome

(3) Thalassemia

(4) Down’s syndrome

Answer (4)

65. Which of the following statements is correct?

(1) Biomagnification refers to increase in concentration of the toxicant at successive trophic levels.

(2) Presence of large amount of nutrients in water restricts ‘Algal Bloom’

(3) Algal Bloom decreases fish mortality

(4) Eutrophication refers to increase in domestic sewage and waste water in lakes.

Answer (1)

66. Match List I with List II.

List I                          List II

A. Taenia                        I. Nephridia

B. Paramoecium            II. Contractile vacuole

C. Periplaneta               III. Flame cells

D. Pheretima                 IV. Urecose gland

Choose the correct answer from the options given below:

(1) A-I, B-II, C-IV, D-III

(2) A-III, B-II, C-IV, D-I

(3) A-II, B-I, C-IV, D-III

(4) A-I, B-II, C-III, D-IV

Answer (2)

67. Given below are two statements:

Statement I:Electrostatic precipitator is most widely used in thermal power plant .

Statement II: Electrostatic precipitator in thermal power plant removes ionising radiations.

In the light of the above statements, choose the most appropriate answer from the options given below:

(1) Both Statement I and Statement II are incorrect.

(2) Statement I is correct but Statement II is incorrect.

(3) Statement I is incorrect but Statement II is correct.

(4) Both Statement I and Statement II are correct.

Answer (2)

68. Given below are two statements:

Statement I: Vas deferens receives a duct from seminal vesicle and opens into urethra as the ejaculatory

duct.

Statement Il: The cavity of the cervix is called cervical canal which along with vagina forms birth canal.

the light of the above statements, choose the correct answer from the options given below:

(1) Both Statement I and Statement II are false.

(2) Statement I is correct but Statement II is false.

(3) Statement I is incorrect but Statement II is true.

(4) Both Statement I and Statement II are true.

Answer (4)

169. Radial symmetry is NOT found in adults of phylum ______.

(1) Hemichordata

(2) Coelenterata

(3) Echinodermata

(4) Ctenophora

Answer (1)

70. Match List I with List II .

List I (Cells)                       List II  (Secretion)

A. Peptic cells I. Mucus

B. Goblet cells II. Bile juice

C. Oxyntic cells III. Proenzyme pepsinogen

D. Hepatic cells IV. HCl and intrinsic factor for absorption of vitamin B12

Choose the correct answer from the options given below:

(1) A-II, B-I, C-III, D-IV

(2) A-III, B-I, C-IV, D-II

(3) A-II, B-IV, C-I, D-III

(4) A-IV, B-III, C-II, D-I

Answer (2)

71. Match List I with List II with respect in human eye.

List I                                   List II

A. Fovea                    I. Visible coloured portion of eye that regulates diameter of pupil.

B. Iris                      II. External layer of eye formed of dense connective tissue.

C. Blind spot          III. Point of greatest visual acuity or resolution.

D. Sclera               IV. Point where optic nerve leaves the eyeball and  photoreceptor cells are absent.

Choose the correct answer from the options given below:

(1) A-IV, B-III, C-II, D-I

(2) A-I, B-IV, C-III, D-II

(3) A-II, B-I, C-III, D-IV

(4) A-III, B-I, C-IV, D-II

Answer (4)

72. Which of the following functions is carried out by cytoskeleton in a cell?

(1) Protein synthesis

(2) Motility

(3) Transportation

(4) Nuclear division

Answer (2)

73. Once the undigested and unabsorbed substances enter the caecum, their backflow is prevented by

(1) Ileo-caecal valve

(2) Gastro-oesophageal sphincter

(3) Pyloric sphincter

(4) Sphincter of Oddi

Answer (1)

74. Match List I with List II.

List I                          List II

A. Vasectomy             I. Oral method

B. Coitus interruptus II. Barrier method

C. Cervical caps        III. Surgical method

D. Saheli                   IV. Natural method

Choose the correct answer from the options given below:

(1) A-III, B-IV, C-II, D-I

(2) A-II, B-III, C-I, D-IV

(3) A-IV, B-II, C-I, D-III

(4) A-III, B-I, C-IV, D-II

Answer (1)

NEET Biology Questions and Answers | NEET Zoology (51-85)

75. Match List I with List II.

List I (Type of Joint)                      List II (Found between)

A. Cartilaginous Joint                   I. Between flat skull bones

B. Ball and Socket Joint              II. Between adjacent vertebrae in vertebral column

C. Fibrous Joint                           III. Between carpal and metacarpal of thumb

D. Saddle Joint                              IV. Between Humerus and Pectoral girdle

Choose the correct answer from the options given below:

(1) A-II, B-IV, C-I, D-III

(2) A-I, B-IV, C-III, D-II

(3) A-II, B-IV, C-III, D-I

(4) A-III, B-I, C-II, D-IV

Answer (1)

76. Given below are two statements:

Statement I: RNA mutates at a faster rate.

Statement II: Viruses having RNA genome and shorter life span mutate and evolve faster.

In the light of the above statements, choose the correct answer from the options given below:

(1) Both Statement I and Statement II are false.

(2) Statement I is true but Statement II is false.

(3) Statement I is false but Statement II is true.

(4) Both Statement I and Statement II are true.

Answer (4)

77. Given below are two statements:

Statement I: In prokaryotes, the positively charged DNA is held with some negatively charged proteins in a region called nucleoid.

Statement II: In eukaryotes, the negatively charged DNA is wrapped around the positively charged histone octamer to form nucleosome.

In the light of the above statements, choose the correct answer from the options given below:

(1) Both Statement I and Statement II are false.

(2) Statement I is correct but Statement II is false.

(3) Statement I is incorrect but Statement II is true.

(4) Both Statement I and Statement II are true.

Answer (3)

78. Which one of the following symbols represents mating between relatives in human pedigree analysis?



Answer (1)

79. Select the correct group/set of Australian Marsupials exhibiting adaptive radiation.

(1) Numbat, Spotted cuscus, Flying phalanger

(2) Mole, Flying squirrel, Tasmanian tiger cat

(3) Lemur, Anteater, Wolf

(4) Tasmanian wolf, Bobcat, Marsupial mole

Answer (1)

80. Which of the following is not a cloning vector?

(1) YAC

(2) pBR322

(3) Probe

(4) BAC

Answer (3)

81. Match List I with List II.

List I                                 List II

A. Heroin                       I. Effect on cardiovascular system

B. Marijuana II. Slow down body function

C. Cocaine III. Painkiller

D. Morphine IV. Interfere with transport of dopamine

Choose the correct answer from the options given below:

(1) A-I, B-II, C-III, D-IV

(2) A-IV, B-III, C-II, D-I

(3) A-III, B-IV, C-I, D-II

(4) A-II, B-I, C-IV, D-III

Answer (4)

82. Which one of the following techniques does not serve the purpose of early diagnosis of a disease for its early treatment?

(1) Serum and Urine analysis

(2) Polymerase Chain Reaction (PCR) technique

(3) Enzyme Linked Immuno-Sorbent Assay (ELISA) technique

(4) Recombinant DNA Technology

Answer (1)

83. Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R.

Assertion A: Endometrium is necessary for implantation of blastocyst.

Reason R: In the absence of fertilization, the corpus luteum degenerates that causes disintegration of

endometrium.

In the light of the above statements, choose the correct answer from the options given below:

(1) Both A and R are true but R is NOT the correct explanation of A.

(2) A is true but R is false.

(3) A is false but R is true.

(4) Both A and R are true and R is the correct expiation of A.

Answer (1)

84. Match List I with List II.

List I                           List II

A. Gene ‘a’ I. β-galactosidase

B. Gene ‘y’ II. Transacetylase

C. Gene ‘i’ III. Permease

D. Gene ‘z’ IV. Repressor protein

Choose the correct answer from the options given below:

(1) A-II, B-III, C-IV, D-I

(2) A-III, B-IV, C-I, D-II

(3) A-III, B-I, C-IV, D-II

(4) A-II, B-I, C-IV, D-III

Answer (1)

85. Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R.

Assertion A: Nephrons are of two types: Cortical & Juxta medullary, based on their relative position in cortex and medulla.

Reason R: Juxta medullary nephrons have short loop of Henle whereas, cortical nephrons have longer loop of Henle.

In the light of the above statements, choose the correct answer from the options given below:

(1) Both A and R are true but R is NOT the correct explanation of A.

(2) A is true but R is false.

(3) A is false but R is true.

(4) Both A and R are true and R is the correct explanation of A.

Answer (2)

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