What effect would you expect if gene expression of the $lac$ operon were completely repressed?

  • A
    The cell would be more efficient without 'wasting' the energy required for the low level of $Lac Z$,$Lac Y$,and $Lac A$ gene expression.
  • B
    Allolactose would accumulate within the cell and become toxic.
  • C
    Lactose would not be converted into the inducer and the operon could not be induced.
  • D
    All of the above

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