Q:
A Lac repressor is a tetramer repressed when bound to the inducer. The trp repressor is a ____________________
Answer & Explanation
Answer: B) Dimer activated on inducer binding
Explanation: A trp repressor is a dimer which can’t bind to the cis element unless it is bound to the inducer tryptophan. Only then it undergoes conformational change such that it then binds to the operator.
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