If a gene has been methylated,

Question

Quizplus · Accepted Answer

Methylation of a gene prevents the polymerase protein from reading and transcribing it. Therefore, choice B is correct as the polymerase protein can no longer recognize the gene to read it. Choice A and D are incorrect as methylation typically inhibits gene expression, meaning the gene is not in the "on" position and is not transcribed. Choice C is also incorrect as methylation does not affect the ability of a repressor to block the polymerase protein.

If a Gene Has Been Methylated