GATE BT Animals PYQs & Answers — Page 2

Questions 11–20 of 21. Imported answers require independent review unless marked reviewed.

Topic practice 21 questionsPage 2 of 3

Which of the following layer(s) is/are formed from the inner cell mass of the blastocyst?

Your answerSelect all correct options. You can choose more than one.

Ectoderm

Endoderm

Mesoderm

Trophectoderm

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During a positive-negative selection process, transformed animal cells expressing __________ are killed in presence of ganciclovir in the medium.

Your answerChoose one option.

pyruvate kinase

viral thymidine kinase

viral serine/threonine kinase

viral tyrosine kinase

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A vector derived from which one of the following viruses is used for high-frequency genomic integration of a transgene in animal cells?

Your answerChoose one option.

Adenovirus

Adeno-associated virus

Lentivirus

Herpes simplex virus

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Which one of the following media components is used to maintain pH in mammalian cell culture?

Your answerChoose one option.

CaCl₂

MgSO₄

NaCl

NaHCO₃

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Determine the correctness or otherwise of the following Assertion [a] and the Reason [r].

Assertion [a]: Embryonic stem cells are suitable for developing knockout mice

Reason [r]: Homologous recombination is more frequent in embryonic stem cells than that in somatic cells

Your answerChoose one option.

Both [a] and [r] are false

Both [a] and [r] are true, and [r] is the correct reason for [a]

Both [a] and [r] are true, but [r] is not the correct reason for [a]

[a] is true, but [r] is false

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Determine the correctness or otherwise of the following Assertion [a] and the Reason [r].

Assertion [a]: A zygote and its immediate descendant cells are unspecialized and are called totipotent

Reason [r]: Totipotent cells retain the capacity to differentiate into only a few cell types

Your answerChoose one option.

Both [a] and [r] are false

Both [a] and [r] are true but [r] is not the correct reason for [a]

Both [a] and [r] are true and [r] is the correct reason for [a]

[a] is true but [r] is false

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Which one of the following is used as a pH indicator in animal cell culture medium?

Your answerChoose one option.

Acridine orange

Phenol red

Bromophenol blue

Coomassie blue

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Which of the following statements are CORRECT about the function of fetal bovine serum in animal cell culture?

P. It stimulates cell growth Q. It enhances cell attachment R. It provides hormones and minerals S. It maintains pH at 7.4

Your answerChoose one option.

P and Q only

P and S only

P, Q and R only

P, Q, R and S

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If serum is removed from the growth medium of human embryonic kidney cell line (HEK), then the cells will

Your answerChoose one option.

proliferate faster

proliferate normally

undergo cell cycle arrest

undergo immediate apoptosis

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A single stem cell undergoes 10 asymmetric cell divisions. The number of stem cells at the end is ________

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GATE BT Animals PYQs

Question 18

Question 9

Question 10

Question 13

Question 36

Question 40

Question 2

Question 35

Question 2

Question 24