NEET Biology 2022 - NEET Zoology Questions (25-50)

26. Regarding Meiosis, which of the statements is incorrect?

(1) Pairing of homologous chromosomes and recombination occurs in Meiosis-I

(2) Four haploid cells are formed at the end of Meiosis-II

(3) There are two stages in Meiosis, Meiosis-I and II

(4) DNA replication occurs in S phase of Meiosis-II

NEET Biology 2022 - NEET Zoology Questions (25-50)

27. Detritivores breakdown detritus into smaller particles. This process is called:

(1) Humification

(2) Decomposition

(3) Catabolism 

(4) Fragmentation


28. Which of the following is not a connective tissue?

(1) Cartilage

(2) Neuroglia

(3) Blood 

(4) Adipose tissue

Answer (2)

29. In the taxonomic categories which hierarchical arrangement in ascending order is correct in case of animals?

(1) Kingdom, Order, Class, Phylum, Family, Genus, Species

(2) Kingdom, Order, Phylum, Class, Family, Genus, Species

(3) Kingdom, Phylum, Class, Order, Family, Genus, Species

(4) Kingdom, Class, Phylum, Family, Order, Genus, Species

Answer (3*)

* Language of question is wrongly framed. The word ascending shoud be replaced by descending

30. Given Below are two statements:

Statement I:

Restriction endonucleases recognise specific sequence to cut DNA known as palindromic nucleotide

sequence.

Statement II:

Restriction endonucleases cut the DNA strand a little away from the centre of the palindromic site.

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

Answer (3)

31. In gene therapy of Adenosine Deaminase (ADA) deficiency, the patient requires periodic infusion of genetically engineered lymphocytes because :

(1) Lymphocyctes from patient's blood are grown in culture, outside the body.

(2) Genetically engineered lymphocytes are not immortal cells.

(3) Retroviral vector is introduced into these lymphocytes.

(4) Gene isolated from marrow cells producing ADA is introduced into cells at embryonic stages

Answer (2)

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

Assertion (A):

Osteoporosis is characterized by decreased bone mass and increased chance of fractures.

Reason (R):

Common cause of osteoporosis is increased levels of estrogen.

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

Answer (1)

33. At which stage of the life the oogenesis process is initiated?

(1) Birth

(2) Adult

(3) Puberty

 (4) Embryonic development stage

Answer (4)

34. If ‘8’ Drosophila in a laboratory population of ‘80’ died during a week, the death rate in the population is ______ individuals per Drosophila per week.

(1) 1.0

(2) zero

(3) 0.1

(4) 10

Answer (3)

35. Given below are two statements:

Statement I:

Autoimmune disorder is a condition where body defense mechanism recognizes its own cells as foreign bodies.

Statement II:

Rheumatoid arthritis is a condition where body does not attack self cells.

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

Answer (1)

36. The recombination frequency between the genes a & c is 5%, b & c is 15%, b & d is 9%, a & b is 20%, c & d is 24% and a & d is 29%. What will be the sequence of these genes on a linear chromosome?

(1) a, b, c, d

(2) a, c, b, d

(3) a, d, b, c

(4) d, b, a, c


37. Match List-I with List-II

List-I (Biological Molecules)   List-II  (Biological functions)

(a) Glycogen                                  (i) Hormone

(b) Globuline                                 (ii) Biocatalyst

(c) Steroids                                    (iii) Antibody

(d) Thrombin                                 (iv) Storage product

Choose the correct answer from the options given below:

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

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

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

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

Answer (2)

38. Which of the following are not the effects of Parathyroid hormone?

(a) Stimulates the process of bone resorption

(b) Decreases Ca2+ level in blood

(c) Reabsorption of Ca2+ by renal tubules

(d) Decreases the absorption of Ca2+ from digested food

(e) Increases metabolism of carbohydrates

Choose the most appropriate answer from the options given below:

(1) (a) and (e) only 

(2) (b) and (c) only

(3) (a) and (c) only 

(4) (b), (d) and (e) only

Answer (4)

39. Which of the following is not a desirable feature of a cloning vector?

(1) Presence of single restriction enzyme site

(2) Presence of two or more recognition sites

(3) Presence of origin of replication

(4) Presence of a marker gene

Answer (2)

40. Match List-I with List-II with respect to methods of Contraception and their respective actions.

List-I List-II

(a) Diaphragms (i) Inhibit ovulation and Implantation

(b) Contraceptive Pills (ii) Increase phagocytosis of sperm within Uterus

(c) Intra Uterine Devices (iii) Absence of Menstrual cycle and ovulation following parturition

(d) Lactational Amenorrhea 

(iv) They cover the cervix blocking the entry of sperms . Choose the correct answer from the options given below:

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

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

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

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

Answer (4)

41. If a colour blind female marries a man whose mother was also colour blind, what are the chances of her progeny having colour blindness?

(1) 75% 

(2) 100%

(3) 25%

(4) 50%

Answer (2)

42. Which of the following statements is not true?

(1) Homology indicates common ancestry

(2) Flippers penguins and dolphins are a pair of homologous organs

(3) Analogous structures are a result of convergent evolution

(4) Sweet potato and potato is an example of analogy


43. Which of the following is a correct statement?

(1) Slime moulds aer saprophytic organisms classified under Kingdom Monera.

(2) Mycoplasma have DNA, Ribosome and cell wall.

(3) Cyanobacteria are a group of autotrophic organisms classified under kingdom Monera.

(4) Bacteria are exclusively heterotrophic organisms.


44. Select the incorrect statement with respect to acquired immunity.

(1) Anamnestic response is due to memory of first ecounter.

(2) Acquired immunity is non-specific type of defense present at the time of birth.

(3) Primary response is produced when our body encounters a pathogen for the first time.

(4) Anamnestic response is elicited on subsequent encounters with the same pathogen.


45. Match List-I with List-II

List-I                                                   List-II

(a) Bronchioles                  (i) Dense Regular Connective Tissue

(b) Goblet Cell                  (ii) Loose Connective Tissue

(c) Tendons                        (iii) Glandular Tissue

(d) Adipose Tissue              (iv) Ciliated Epithelium

Choose the correct answer from the options given below:

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

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

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

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


46. Statements related to human Insulin are given below.

Which statement(s) is/are correct about genetically engineered Insulin?

(a) Pro-hormone insulin contain extra stretch of C-peptide

(b) A-peptide and B-peptide chains of insulin were produced separately in E.coli, extracted and combined by creating disulphide bond between them.

(c) Insulin used for treating Diabetes was extracted from Cattles and Pigs.

(d) Pro-hormone Insulin needs to be processed for converting into a mature and functional hormone.

(e) Some patients develop allergic reactions to the foreign insulin.

Choose the most appropriate answer from the options given below:

(1) (c) and (d) only 

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

(3) (a), (b) and (d) only 

(4) (b) only


47. Given below are two statements:

Statements I :

In a scrubber the exhaust from the thermal plant is passed through the electric wires to charge the dust particles.

Statement II :

Particulate matter (PM 2.5) can not be removed by scrubber but can be removed by an electrostatic precipitator.

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


48. Ten E.coli cells with 15N - dsDNA are incubated in medium containing 14N nucleotide. After 60 minutes, how many E.coli cells will have DNA totally free from 15N?

(1) 60 cells

(2) 80 cells

(3) 20 cells

(4) 40 cells


49. Select the incorrect statement regarding synapses :

(1) Chemical synapses use neurotransmitters

(2) Impulse transmission across a chemical synapse is always faster than that across an electrical synapse.

(3) The membranes of presynaptic and postsynaptic neurons are in close proximity in an electrical synapse.

(4) Electrical current can flow directly from one neuron into the other across the electrical synapse.


50. Which one of the following statements is correct?

(1) Blood moves freely from atrium to the ventricle during joint diastole.

(2) Increased ventricular pressure causes closing of the semilunar valves.

(3) The atrio-ventricular node (AVN) generates an action potential to stimulate atrial contraction

(4) The tricuspid and the bicuspid valves open due to the pressure exerted by the simultaneous contraction of the atria

Answer:

26. (4) DNA replication occurs in S phase of Meiosis-II

27. (4) Fragmentation

28. (2) Neuroglia

29. (3) Kingdom, Phylum, Class, Order, Family, Genus, Species

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

31. (2) Genetically engineered lymphocytes are not immortal cells.

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

33. (4) Embryonic development stage

34. (3) 0.1

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

36. (2) a, c, b, d

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

38. (4) (b), (d) and (e) only

39. (2) Presence of two or more recognition sites

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

41. (2) 100%

42. (2) Flippers penguins and dolphins are a pair of homologous organs

43.

44. (2) Acquired immunity is non-specific type of defense present at the time of birth.

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

46. (4) (b) only

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

48. (1) 60 cells

49. (2) Impulse transmission across a chemical synapse is always faster than that across an electrical synapse.

50. (1) Blood moves freely from atrium to the ventricle during joint diastole.

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