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)