Q.

In trp operon, the attenuator is region present within the

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a

operator of operon 

b

leader sequence of operon 

c

trpR of operon

d

promoter of the operon

answer is C.

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Detailed Solution

In trp operon the attenuator is present within the leader sequence prior to the structural gene E. In the presence of tryptophan it stops the transcription of polycistronic mRNA at this region.

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