Question

The rate of transcription of a gene in E. coli would likely not be directly affected...

The rate of transcription of a gene in E. coli would likely not be directly affected by:

a. the promoter

b. a mutation in RNA polymerase

c. the size of the polysome

d. Actinomycin D

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Answer #1

Right answer is C) the size of the polysome.

Explanation:

Polysome is defined as the structure which is formed by RNA and ribosomes. When many ribosomes are attached to single RNA, then polysome is formed. The polysome is responsible for protein synthesis. That's why its size does not affect the transcription process.

Whereas promoter provides the binding site for RNA polymerase. Mutation in RNA polymerase leads to decrease the activity of RNA polymerase.

Actinomycin is a transcription inhibitor in E.coli. That's why a, b and d option affect the transcription process in E. Coli.

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