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5.Molecular Basis of Inheritance
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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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