OBJECTIVE LIFE SCIENCE
MOLECULAR BIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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These are the region of lac operon EXCEPT
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cAMP site
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operator
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promoter
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lacZ, lacY and lacA
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Explanation:
Detailed explanation-1: -Final answer: Enhancer is not a part of an operon.
Detailed explanation-2: -The lactose operon (also known as the lac operon) is a set of genes that are specific for uptake and metabolism of lactose and is found in E. coli and other bacteria.
Detailed explanation-3: -In the lactose operon of Escherichia coli, the final targets of glucose are the lac repressor and the positive regulator, the complex of cAMP receptor protein (CRP) and cAMP. First, glucose prevents the entry of inducer into the cell, resulting in an increase in the concentration of the inducer-free lac repressor.
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