Question

Explain: What triggers each step in the synthesis of tryptophan?

Answer 1

Hello!

What triggers each step in the synthesis of tryptophan?

Each step is triggered by a specifi c enzyme. The tryptophan operon contains fi ve genes (trpA through trpE) needed to make the amino acid tryptophan. When tryptophan levels are low, RNA polymerase binds to the operator, turning on the transcription of the fi ve enzyme genes needed for tryptophan synthesis.

Ary~

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Answer 2

Answer:

trpA through trpE

Explanation:

The tryptophan (trp) operon in the bacteria Escherichia coli  

(E. coli) is a repressible operon. Tryptophan synthesis occurs in

five steps. Each step is triggered by a specific enzyme. The

tryptophan operon contains five genes (trpA through trpE)

needed to make the amino acid tryptophan. When tryptophan

levels are low, RNA polymerase binds to the operator, turning on

the transcription of the five enzyme genes needed for tryptophan

synthesis.