| In regulation of gene expression in prokaryotes, |
| I. lactose acts as a suppressor for the gene expression. |
| II. tryptophan acts as an inducer for the gene expression. |
| III. regulatory gene is the one that produces the represser molecule. |
| Choose the options containing correct statements. |
A) Only I
B) Only II
C) Only III
D) I and II
Correct Answer: C
Solution :
[c] Statement III is correct for regulation of gene expression in prokaryotes whereas I and II are not correct and can be corrected as Lactose acts as an inducer for the gene expression in lac operon. Tryptophan acts as a represser for gene expression in trp operon.
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