Which of the following would you expect to find in an inducible system?

  • A

    A repressor protein, which is bound to $DNA$ in absence of any other factor.

  • B

    A repressor protein, which is bound to $DNA$ in the presence of a corepressor.

  • C

    An activator protein, which is bound to $DNA$ in the absence of any other factor.

  • D

    An activator protein, which is bound to $DNA$ only in the absence of air inhibitor.

Similar Questions

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  • [NEET 2018]

A low level of expression of lac operon occurs at all the time. Can you explain the logic behind this phenomena.

Operon is a

In the medium where $E$. coli was growing, lactose was added, which induced the lac operon. Then, why does lac operon shut down some time after addition of lactose in the medium?

In the lac operon, the structural genes are switched off when