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BotanyNEET 2024Gene regulation: lac operon; Human Genome Project, DNA fingerprinting

Molecular Basis of Inheritance

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

  1. A.Acetylase
  2. B.Permease
  3. C.Polymerase
  4. D.Beta-galactosidase

Solution

Lactose enters E. coli through lac permease, the product of the y gene; galactosidase (z) then hydrolyses it inside the cell.

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