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Match List - I with List - II. Choose the correct answer.
Column I
- A. In lac operon i gene codes for
- B. In lac operon z gene codes for
- C. In lac operon y gene codes for
- D. In lac operon a gene codes for
Column II
- I. transacetylase
- II. permease
- III. $\beta$-galactosidase
- IV. Repressor
Correct answer: A → IV, B → III, C → II, D → I
Detailed Solution
In the lac operon, the regulator i gene codes for the repressor protein; the structural genes z, y and a code for $\beta$-galactosidase, permease and transacetylase respectively.