A deletion of the operator would make the tryptophan operon exhibit constitutive

Question

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Explanation / Answer

9). A deletion of the operator would make the tryptophan operon exhibit constitutive expression ----------> TRUE

The “trp operon” acts through “operator-repressor mechanism” and thus represses the transcription. In this, the synthesis of excessively synthesised proteins can be turned off. The repressor molecule (excessively synthesised molecule) must bind to the coreceptor molecule (buy product or end product of repressor). Then, the coreceptor activates the repressor protein, which bind to the operator site.

As trp operon works based on repressor mechanism, mutation at the operator site prevent the binding of repressor, so that the operon will never be turned off.

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