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To which of the following, repressor protein is attached?
(a)Operator
(b)Lac Z
(c)Promoter
(d)Structural gene

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Important Questions on Molecular Basis of Inheritance
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Given the diagram of the lac operon showing an operon of inducible enzymes. Identify components and enzymes ( and ) ?

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I) Initiates beta-galactosidase activity
II) Bacteria does not produce galactose and glucose
III) Promotor site of transcription unit acts as a repressor

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Column-I | Column-II | ||
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i gene | ß-galactosidase | ||
z gene | Permease | ||
a gene | Repressor | ||
y gene | Transacetylase |
Select the correct option.

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