Gujarati
5.Molecular Basis of Inheritance
medium

Wild type E.coli cells are growing in normal medium with glucose. They are transferred to a medium containing only lactose as the sugar. Which one of the following changes take place

A

The lac-Operon is repressed

B

All Operons are induced

C

E. coli cells stop dividing

D

The lac-Operon is induced

(AIPMT-1995)

Solution

(d)Lac operon : cluster of genes that regulates production of enzymes needed to metabolize lactose in bacterial cells $(E. coli)$. It is an inducible operon.

Standard 12
Biology

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