If a particular operon encodes enzymes for making an essential am...

Question

If a particular operon encodes enzymes for making an essential amino acid and is regulated like the trp operon, then
a. the amino acid inactivates the repressor.
b. the repressor is active in the absence of the amino acid.
c. the amino acid acts as a corepressor.
d. the amino acid turns on transcription of the operon.

Accepted Answer

Hello everyone here we have a question that says if a specific operation encodes enzymes that produce essential amino acids and if that operation is regulated like the TRP operator on, then the essential amino acid may act as a a co repressor, B a promoter. See a stop signal or D A stop code on. So the amino acid is going to turn off the transcription and activate the repressor protein, so it's acting the same as tryptophan. So the repressor is active in the re presence of the amino acid. The enzyme produced is called the replaceable enzyme, so it is acting like a co repressor. So our answer here is a co repressor. Thank you for watching. Bye.

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