Q. In E.coli, the lac operon gets switched on when
  • (A) lactose is present and it binds to the Β», repressor.
  • (B) repressor binds to operator.
  • (C) RNA polymerase binds to the operator.
  • (D) lactose is present and it binds to RNA polymerase.
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βœ… Correct Answer: (A) lactose is present and it binds to the Β», repressor.

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