Which Statement Best Describes the Mechanism for Circadian Rhythm

question 40

Multiple Choice

Which statement best describes the mechanism for circadian rhythm?

• A) There is an alternation between enhanced and inhibited expression of clock genes.
• B) Clock genes inhibit gene expression of positive elements.
• C) Clock genes inhibit expression of negative elements.
• D) The time-keeping mechanism depends only on the breakdown of negative elements.

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