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Trp repressor is a ____________

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Trp repressor is a ____________

(a) Homodimer

(b) Homotrimer

(c) Heterodimer

(d) Heterotrimer

I had been asked this question during an online interview.

I'd like to ask this question from Regulation of Gene Expression in Prokaryotes topic in chapter Regulation of Gene Expression and Miscellaneous of Biochemistry

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Right choice is (a) Homodimer

Easy explanation: Trp repressor is formed by two identical molecules, each subunit containing 107 amino acid residues.

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