NEET 2019 Biology question

Biology Molecular Basis of Inheritance NEET 2019

Match the following genes of the Lac operon with their respective products : (a) i gene (i) -galactosidase (b) z gene (ii) Permease (c) a gene (iii) Repressor (d) y gene (iv) Transacetylase Select the correct option.

(1)(a)-(i), (b)-(iii), (c)-(ii), (d)-(iv)
(2)(a)-(iii), (b)-(i), (c)-(ii), (d)-(iv)
(3)(a)-(iii), (b)-(i), (c)-(iv), (d)-(ii)Correct
(4)(a)-(iii), (b)-(iv), (c)-(i), (d)-(ii)

Answer: (3)

Solution

In the lac operon the regulatory i gene codes for the repressor protein (a-iii). Of the three structural genes, z codes for -galactosidase (b-i), y codes for

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Question ID VK-092540