Questions: What structure consists of a set of prokaryotic genes for proteins with related functions? Barr body promoter operon transposon

What structure consists of a set of prokaryotic genes for proteins with related functions? Barr body promoter operon transposon
Transcript text: What structure consists of a set of prokaryotic genes for proteins with related functions? Barr body promoter operon transposon
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Solution

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The answer is the third one (C): operon.

Explanation for each option:

  • Barr body: This is incorrect. A Barr body is an inactivated X chromosome in a female cell, not related to prokaryotic genes or their functions.

  • Promoter: This is incorrect. A promoter is a DNA sequence that initiates transcription of a particular gene, but it does not consist of a set of genes.

  • Operon: This is correct. An operon is a cluster of genes under the control of a single promoter and is found in prokaryotes. These genes are transcribed together and usually have related functions, allowing for coordinated regulation.

  • Transposon: This is incorrect. A transposon is a DNA sequence that can change its position within the genome, not a structure consisting of a set of genes with related functions.

In summary, an operon is the structure that consists of a set of prokaryotic genes for proteins with related functions.

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