What happens if the -10 or the -35 sequence of a gene is deleted? a) Transcripti

Question

What happens if the -10 or the -35 sequence of a gene is deleted?

a) Transcription of that gene begins 10 bases before it is supposed to.

b) The level of transcription for that gene increases.

c) Transcription of that gene is terminated too soon.

d) The level of transcription for that gene decreases.

e) Ribosomes cannot recognize the RNA produced from that gene.

a) Transcription of that gene begins 10 bases before it is supposed to.

b) The level of transcription for that gene increases.

c) Transcription of that gene is terminated too soon.

d) The level of transcription for that gene decreases.

e) Ribosomes cannot recognize the RNA produced from that gene.

Explanation / Answer

Answer: D) The level of transcription for that gene decreases.

The -10 or the -35 sequence are said to be consensus sequence that are present after near to promoter region for prolonging the sequence of nucleotides. Deletion of such sequences would lead to the decrease in the addition of new nuclotides. As a result, level of transcription for that gene decreases.

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