GATE BT branch:bt PYQs & Answers — Page 61

Questions 601–610 of 650. Imported answers require independent review unless marked reviewed.

Topic practice 650 questionsPage 61 of 65

For y = f(x), if

at x = 0, and y = 1 at x =1, the value of y at x = 2 is ________.

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During protein synthesis, tRNAs are NOT involved in

Your answerChoose one option.

charging

initiation

elongation

termination

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In eukaryotes, cytokinesis is inhibited by

Your answerChoose one option.

cytochalasin D

vinblastine

nocodazole

colchicine

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A proto-oncogene is suspected to have undergone duplication in a certain type of cancer. Of the following techniques, which one would verify the gene duplication?

Your answerChoose one option.

Northern blotting

Southern blotting

South western blotting

Western blotting

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A polymerase chain reaction (PCR) was set up with the following reagents: DNA template,

polymerase, buffer, dNTPs, and

. Which one of the following is missing in the reaction mixture?

Your answerChoose one option.

Helicase

Single-stranded binding proteins

Primers

Reverse transcriptase

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An enzymatic reaction exhibits Michaelis-Menten kinetics. For this reaction, on doubling the concentration of enzyme while maintaining [S] >> [E₀],

Your answerChoose one option.

both Kₘ and Vₘₐₓ will remain the same.

Kₘ will remain the same but Vₘₐₓ will increase.

Kₘ will increase but Vₘₐₓ will remain the same.

both Kₘ and Vₘₐₓ will increase.

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A 5 liter chemostat is fed fresh medium at 0.2 liters/minute having a substrate concentration of 25 grams/liter. At steady state, the outgoing stream has substrate concentration of 2.5 grams/liter. The rate of consumption (grams/liter/minute) of the substrate in the reactor is _____.

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The transcription factor X binds a 10 base pair DNA stretch. In the DNA of an organism, X was found to bind at 20 distinct sites. An analysis of these 20 binding sites showed the following distribution:

Base	1	2	3	4	5	6	7	8	9	10
A	11	0	0	0	16	2	4	0	4	3
T	3	0	19	0	1	3	4	20	2	4
G	4	20	0	0	2	4	6	0	12	2
C	2	0	1	20	1	11	6	0	2	11

What is the consensus sequence for the binding site of X?

Your answerChoose one option.

NGTCNNTNNN

AGTCACNTGC

CACCTANCTG

ANNNACGNGC

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A bacterium has a genome of size 6 million base pairs. If the average rate of DNA synthesis is 1000 base pairs/second, the time taken (in minutes) for replication of the genome will be _____.

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At the transcription start site of a gene, any of the four nucleotides can occur with equal probability

. The Shannon Entropy S, given by

, for this start site is __________.

Given data:

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GATE BT branch:bt PYQs

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