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Question

Match the following genes of the Lac operon with their respective products.

Column I Column II
A. i gene i. beta-galactosidase
B. z gene ii. Permease
C. a gene iii. Repressor
D. y gene iv. Transacetylase

A
A-iii, B- iv, C- i, D- ii
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B
A- iii, B-i, C-ii, D-iv
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C
A-i, B- iii, C- ii, D- iv
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D
A-iii, B-i, C- iv, D-ii
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Solution

The correct option is D A-iii, B-i, C- iv, D-ii
Lac operon is composed of i gene, z gene, y gene and a gene. The i gene forms the repressor, 'z' gene forms the beta-galactosidase, 'y' gene forms permease and 'a 'gene forms the transacetylase.

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