GENETICS AND EVOLUTION
MOLECULAR BASIS OF INHERITANCE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Lac operon
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Is associated with anabolic process
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Is a repressible operon
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Has three structural genes
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Is constituted by five structural genes
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Explanation:
Detailed explanation-1: -The three structural genes are: lacZ, lacY, and lacA. lacZ encodes -galactosidase (LacZ), an intracellular enzyme that cleaves the disaccharide lactose into glucose and galactose.
Detailed explanation-2: -Lac operon comprises three structural genes, i.e., lac Z, lac Y, and lac A.
Detailed explanation-3: -Lac operon consists of one regulatory gene (i-gene) and three structural genes (lac-Z, lac-Y and lac-A).
Detailed explanation-4: -So, the correct answer is ‘Lac Z, Lac Y, Lac A’
There is 1 question to complete.