問題詳情

39. X chromosome inactivation is an epigenetic mechanism that silences the majority of genes on one X chromosome. Theinactivation appears to involve regions of .
(A) mutated genes
(B) intense transcription
(C) hyper-methylated DNA
(D) hypo-methylated DNA
(E) inverted genes

參考答案

答案:C
難度:適中0.5
統計:A(0),B(0),C(0),D(0),E(0)

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