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Feedback repression occurs at ______

(a) protein level

(b) gene level

(c) transcriptomic level

(d) expression level

The question was asked in an international level competition.

This question is from Industrial Microorganisms topic in portion The Isolation, Preservation and Improvement of Industrial Microorganisms of Fermentation Technology

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The correct answer is (b) gene level

To explain: Feedback repression occurs at the gene level to prevent transcription and thus preventing enzyme synthesis. It switches off the genes products which are needed to maintain the function of the cell.

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