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Which of the following most accurately explains the meaning of a repression lag?

A. A repression lag refers to the time that it takes for the last full-length mRNA transcript to be synthesized after transcriptional repression has been enforced.

B. A repression lag refers to the time that it takes for transcriptional repressors to be recruited to enhancer elements after transcription has been initiated.

C. A repression lag refers to the time that it takes for DNA methylation, histone methylation and histone de-acetylation to make the core promoter inaccessible to new RNA Pol II proteins.

D. A repression lag refers to the length of time that RNA Pol II is pauses (or stalls) at the +30 site

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Category:- Biology
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