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o-na [289]
1 year ago
14

The repressor protein used by Escherichia coli to control the lac operon is coded for by a gene located within the operon. quizl

et
Biology
1 answer:
Lyrx [107]1 year ago
7 0

The repressor protein is coded by the i gene.

<h3>What is the function of the repressor protein in lac operon?</h3>

A protein known as a repressor prevents one or more genes from being expressed. The i gene codes for the repressor protein. The repressor protein inhibits messenger RNA synthesis by attaching to the promoter region of the gene(s). For the control of gene expression in cells, repressor proteins are crucial.

Repressors and activators of gene expression in bacteria are different from one another. However, depending on how a DNA binding protein interacts with other proteins in the cell or in other biological contexts, higher eukaryotic cells can use it as either an activator or a repressor of gene expression. As repressors, additional components like non-coding RNA may also be present.

Learn more about lac operon here:

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