Q.

The main function of the enzyme permease in lac operon is:

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a

Breakdown of lactose into its monomeric units

b

Increasing permeability of the cell to β-galactosides

c

Synthesis of repressor proteins

d

Detoxification of the cell

answer is B.

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Detailed Solution

The lac y codes for the enzyme permease and it increases permeability of the cell to β-galactosides by facilitated diffusion.

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