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In attenuation of the trp operon: a. termination of transcription occurs with lower levels of Trp-tRNA...

In attenuation of the trp operon:

a. termination of transcription occurs with lower levels of Trp-tRNA

b. termination of translation occurs with higher levels of Trp-tRNA

c. termination of translation occurs with lower levels of Trp-tRNA

d. the control region lies upstream of the promote

e. termination of transcription occurs with higher levels of Trp-tRNA

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Homework Answers

Answer #1

Option A:-Incorrect

Reason:-Attenuation is another form of trp operon regulation. It involves the termination of transcription of trp genes in the presence of a high level of tryptophan in the environment.

Option B:- Incorrect

Reason:-Attenuation terminates the transcription of the trp gene, not translation.

Option C:-Incorrect

Reason:-Attenuation terminates transcription of genes in the trp operon in a high level of tryptophan.

Option D:-Incorrect

Option E:-CORRECT

Reason:-Attenuation is another way to regulate the expression of trp operon when the level of tryptophan is high. It terminates the process of transcription and transcription of a short mRNA sequence that is unable to encode enzymes involved in tryptophan biosynthesis.

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