C. Is the answer love....
The trp repressor blocks transcription of the trp operon (B) when the repressor binds to tryptophan.
trp operon or the tryptophan operon codes enzymes for the amino acid tryptophan. The operon is on when the tryptophan is low in amount whereas the operon is off when the tryptophan is low in amount. The operon is an assimilation of five genes.
Repressor is a small protein that is supposed to prevent the synthesis of proteins. It does so binding to the operator gene. Therefore, presence or absence of repressor is a determining factor for an operon to be on or off.
To know more about trp operon, here
brainly.com/question/28239403
#SPJ4
Hey there,
Your correct answer to this question would be of that "<span>A statement of fact that is generally accepted to be true and universal because it has always been observed to be true."
</span>
Hope this helps you.
~Jurgen
Answer:
- Energy is passed from organisms at one trophic level or energy level to organisms in the next trophic level. Producers are always the first trophic level, herbivores the second, the carnivores that eat herbivores the third, and so on.
<h2>Hope this helps you !! </h2>
I believe the answer is A
