Q172 / 200 · NEET 2022 (Phase 2) · Zoology

In lac operon, $z$ gene codes for :

Correct answer
A
$\beta$-galactosidase
B
Permease
C
Repressor
D
Transacetylase

Solution

lac operon is an example of polycistronic operon in which 3 gene are present namely $Z, Y$ and $A$. $\mathrm{Z}-\beta$-galactosidase $\mathrm{Y}$ - Permease A - Transacetylase

Hence, the correct answer is option: 'A'.

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