X chromosome inactivation is characterized by a series of epigenetic chromatin modifications, including all of the following except for:

Question

Quizplus · Accepted Answer

Histone hyperacetylation is typically associated with gene activation rather than gene silencing. In the context of X chromosome inactivation, chromatin modifications usually involve DNA methylation, enrichment of variant histone macroH2A, and coating with XIST RNA to promote gene silencing, not histone hyperacetylation.

X Chromosome Inactivation Is Characterized by a Series of Epigenetic