NEET Biology 2022 - NEET Zoology Questions (1-25)

1. Natural selection where more individuals acquire specific character value other than the mean character value, leads to

(1) Disruptive change 

(2) Random change

(3) Stabilising change 

(4) Directional change

2. Given below are two statements :

Statement I : Mycoplasma can pass through less than 1 micron filter size.

Statement I : Mycoplasma are bacteria with cell wall.

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

(1) Statement I is correct but Statement II is incorrect

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

(3) Both Statement I and Statement II is correct

(4) Both Statement I and Statement II are incorrect

3. A dehydration reaction links two glucose molecules to product maltose. If the formula for glucose is C6H12O6 then what is the formula of maltose?

(1) C12H22O11 

(2) C12H24O11

(3) C12H20O10 

(4) C12H24O12

4. Which of the following statements with respect to Endoplasmic Reticulum is incorrect?

(1) In prokaryotes only RER are present

(2) SER are the sites for lipid synthesis

(3) RER has ribosomes attached to ER

(4) SER is devoid of ribosomes

5. Tegmina in cockroach, arises from

(1) Metathorax

(2) Prothorax and Mesothorax

(3) Prothorax

(4) Mesothorax

6. If the length of a DNA molecule is 1.1 metres, what will be the approximate number of base pairs?

(1) 3.3 × 106 bp 

(2) 6.6 × 106 bp

(3) 3.3 × 109 bp 

(4) 6.6 × 109 bp

7. Identify the asexual reproductive structure associated with Penicillium :

(1) Gemmules 

(2) Buds

(3) Zoospores 

(4) Conidia

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

Assertion (A) : All vertebrates are chordates but all chordates are not vertebrates.

Reason (R) : Notochord is replaced by vertebral column in the adult vertebrates.

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

(1) (A) is correct but (R) is not correct

(2) (A) is not correct but (R) is correct

(3) Both (A) and (R) are correct and (R) is the correct explanation of (A)

(4) Both (A) and (R) are correct but (R) is not the correct explanation of (A)

9. Breeding crops with higher levels of vitamins and minerals or higher proteins and healthier fats is called :

(1) Bio-fortification 

(2) Bio-accumulation

(3) Bio-magnification 

(4) Bio-remediation

10. Under normal physiological conditions in human being every 100 ml of oxygenated blood can deliver ________ ml of O2 to the tissues.

(1) 4 ml 

(2) 10 ml

(3) 2 ml 

(4) 5 ml

11. In which of the following animals, digestive tract has additional chambers like crop and gizzard?

(1) Catla, Columba, Crocodilus 

(2) Pavo, Psittacula, Corvus

(3) Corvus, Columba, Chameleon 

(4) Bufo, Balaenoptera, Bangarus

12. Which of the following functions is not performed by secretions from salivary glands?

(1) Lubrication of oral cavity

(2) Digestion of disaccharides

(3) Control bacterial population in mouth

(4) Digestion of complex carbohydrates

13. Nitrogenous waste is excreted in the form of pellet or paste by :

(1) Hippocampus

(2) Pavo

(3) Ornithorhynchus

(4) Salamandra

14. In an E. Coli strain i gene gets mutated and its product can not bind the inducer molecule. If growth medium is provided with lactose, what will be the outcome?

(1) z, y, a genes will not be translated

(2) RNA polymerase will bind the promoter region

(3) Only z gene will get transcribed

(4) z, y, a genes will be transcribed

15. Which of the following is present between the adjacent bones of the vertebral column?

(1) Areolar tissue

(2) Smooth muscle

(3) Intercalated discs

(4) Cartilage

16. Given below are two statements :

Statement I :

Fatty acids and glycerols cannot be absorbed into the blood.

Statement II :

Specialized lymphatic capillaries called lacteals carry chylomicrons into lymphatic vessels and ultimately into the blood.

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

(1) Statement I is correct but Statement II is incorrect

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

(3) Both Statement I and Statement II are correct

(4) Both Statement I and Statement II are incorrect

17. Select the incorrect statement with reference to mitosis:

(1) Chromosomes decondense at telophase

(2) Splitting of centromere occurs at anaphase

(3) All the chromosomes lie at the equator at metaphase

(4) Spindle fibres attach to centromere of chromosomes

18. Given below are two statements:

Statement I :

The release of sperms into the seminiferous tubules is called spermiation.

Statement II :

Spermiogenesis is the process of formation of sperms from spermatogonia.

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

(1) Statement I is correct but Statement II is incorrect

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

(3) Both Statement I and Statement II are correct

(4) Both Statement I and Statement II are incorrect

19. Given below are two statements :

Statement I :

The coagulum is formed of network of threads called thrombins.

Statement II :

Spleen is the graveyard of erythrocytes.

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

(1) Statement I is correct but Statement II is incorrect

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

(3) Both Statement I and Statement II are correct

(4) Both Statement I and Statement II are incorrect

20. Identify the microorganism which is responsible for the production of an immunosuppressive molecule

cyclosporin A :

(1) Aspergillus niger 

(2) Streptococcus cerevisiae

(3) Trichoderma polysporum

 (4) Clostridium butylicum

21. Which of the following statements are true for spermatogenesis but do not hold true for Oogenesis?

(a) It results in the formation of haploid gametes

(b) Differentiation of gamete occurs after the completion of meiosis

(c) Meiosis occurs continuously in a mitotically dividing stem cell population

(d) It is controlled by the Luteinising hormone (LH) and Follicle Stimulating Hormone (FSH) secreted by the anterior pituitary

(e) It is initiated at puberty

Choose the most appropriate answer from the options given below:

(1) (b), (d) and (e) only 

(2) (b), (c) and (e) only

(3) (c) and (e) only 

(4) (b) and (c) only

22. In-situ conservation refers to:

(1) Conserve only endangered species

(2) Conserve only extinct species

(3) Protect and conserve the whole ecosystem

(4) Conserve only high-risk species

23. Lippe’s loop is a type of contraceptive used as:

(1) Non-Medicated IUD 

(2) Copper releasing IUD

(3) Cervical barrier

 (4) Vault barrier

24. Which of the following is a correct match for disease and its symptoms?

(1) Myasthenia gravis – Genetic disorder resulting in weakening and paralysis of skeletal muscle

(2) Muscular dystrophy – An auto immune disorder causing progressive degeneration of skeletal muscle

(3) Arthritis – Inflammed joints

(4) Tetany – High Ca2+ level causing rapid spasms.

25. Which of the following is not the function of conducting part of respiratory system?

(1) Temperature of inhaled air is brought to body temperature

(2) Provides surface for diffusion of O2 and CO2

(3) It clears inhaled air from foreign particles

(4) Inhaled air is humidified

Answers:

1. (4) Directional change

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

3. (1) C12H22O11 

4. (1) In prokaryotes only RER are present

5. (4) Mesothorax

6. (3) 3.3 × 109 bp 

7. (4) Conidia

8. (3) Both (A) and (R) are correct and (R) is the correct explanation of (A)

9. (1) Bio-fortification 

10. (4) 5 ml

11. (2) Pavo, Psittacula, Corvus

12. (2) Digestion of disaccharides

13. (2) Pavo

14. (1) z, y, a genes will not be translated

15. (4) Cartilage

16. (3) Both Statement I and Statement II are correct

17. (4) Spindle fibres attach to centromere of chromosomes

18. (1) Statement I is correct but Statement II is incorrect

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

20. (3) Trichoderma polysporum

21. (2) (b), (c) and (e) only

22. (3) Protect and conserve the whole ecosystem

23. (1) Non-Medicated IUD 

24. (3) Arthritis – Inflammed joints

25. (2) Provides surface for diffusion of O2 and CO2