E.coli cells with a mutated $Z$ gene of the lac operon cannot grow in medium containing only lactose as the source energy because
AIPMT 2005, Medium
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d
(d)The enzyme like lactase or $\beta $-galactosidase which is formed in response to the presence of its called inducible enzyme.
(d)The enzyme like lactase or $\beta $-galactosidase which is formed in response to the presence of its called inducible enzyme.
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