Biology 9700 · AS & A Level · Gene control

Gene control — practice question

An operon is a DNA segment in prokaryotes.
(a)[2]

Explain why the enzymes encoded by the $lac$ operon are called inducible enzymes.

(b)[7]

Explain, with reference to the $lac$ operon, the pattern of the curve in Fig. 3.1.

(main)[7]

With reference to the $lac$ operon, explain the pattern of the curve in Fig. 3.1.

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