Epigenetic gene regulation is a major topic in regulation of genetic expression, especially over the past several decades of research. Given this topic which of the following is true? a. Epigenetic modification of DNA and histones occurs in both prokaryotes and eukaryotes. b. Methylation of histones typically leads to tighter packing of nucleosomes silencing genes. c. Acetylation of histones typically leads to tighter packing of nucleosomes silencing genes. d. Transcriptionally active DNA is typically tightly packed. e. Epigenetic modification of histones and DNA cannot be transferred to a cell's progeny.
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Epigenetic regulation involves changes in gene expression that do not involve alterations to the underlying DNA sequence. These changes can include DNA methylation, histone modification, and chromatin remodeling. Show more…
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