Question

25. A consensus sequence of any genetic element _____. a. is the optimal sequence of nucleotides...

25. A consensus sequence of any genetic element _____.

a. is the optimal sequence of nucleotides to which the element will bind.

b. is invariant throughout the genome.

c. forms hairpins in RNA to slow down or stop transcription.

d. dictates which ribosomes will bind to the sequence.

e. all of the above.

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Homework Answers

Answer #1

Answer=(a)is the optimal sequence of nucleotides to which the element will bind.

Explanation-

A consensus sequence of any genetic element is the optimal sequence of nucleotides to which the element will bind.

Example-TATA box of Eukaryotic promoter contains TATAAA and TATA binding protein binds at this sequence.

Now consider other option-

Option b is incorrect because consensus sequence has fixed location in the genome.

Option c is incorrect because transcription termination is intrinsic property of mRNA and consensus sequence doesn't play any role in transcription termination.

Option d is incorrect because ribosome binding site present in mRNA and which is not a consensus sequence.

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