GATE BT 2020 Paper 1 — page 16

Questions 46–48 of 65. Imported answers require review unless explicitly marked reviewed.

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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The schematic of a plasmid with a gap in one of the strands is shown below:

Which of the following enzyme(s) is/are required to fill the gap and generate a covalently closed circular plasmid?

[P] DNA ligase

[Q] Alkaline phosphatase

[R] DNA polymerase

[S] Polynucleotide kinase

Your answerChoose one option.

P only

P, R and S only

P and R only

P, Q and R only

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Match sub-cellular organelles listed in Group I with their features listed in Group II:

Your answerChoose one option.

P-1, Q-4, R-2, S-3

P-2, Q-3, R-4, S-1

P-3, Q-4, R-2, S-1

P-3, Q-1, R-4, S-2

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2020 · Paper 1