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Select the following statements that are true of inducible operons (to test your knowledge of the difference between inducible and repressible operons).
a. Inducible operons often contain genes for enzymes that function in catabolic processes. b. Inducible operons are usually in the "turned on" state and are 'turned off' when not needed. c. The inducer is often the product of the enzymes encoded. d. The lac operon is an example of an inducible operon.



Answer :

Option :

B . Inducible operons are usually in the "turned on" state and are 'turned   off' when not needed.

C .  The inducer is often the product of the enzymes encoded.

are true for Inducible operons.

An operon is a cluster of genes which are transcribed collectively to give a single messenger RNA (mRNA) molecule, which consequently encodes a couple of proteins . Such polycistronic mRNA is commonly found in prokaryotes.

An operon is made from numerous structural genes organized beneath a commonplace promoter and regulated with the aid of a not unusual operator. It's miles described as a hard and fast of adjoining structural genes, plus the adjacent regulatory alerts that have an effect on transcription of the structural genes.

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