Fundamentholfundamenthol
NEET2024Biology
Q.

The lactose present in the growth medium of bacteria is transported to the cell by the action of:

  1. A

    Permease

  2. B

    Polymerase

  3. C

    Beta-galactosidase

  4. D

    Acetylase

Solution

In the lac operon of E. coli, the gene lacY codes for permease, the membrane transport protein that brings lactose into the cell. -galactosidase then hydrolyses it inside the cell, and transacetylase has an accessory role.

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