A key reaction in gene repression is the deacetylation of this/these amino acids in histones:
A) serine.
B) threonine.
C) arginine.
D) lysine.
E) All of the above.

Question

Quizplus · Accepted Answer

The deacetylation of lysine residues in histones is a key mechanism for gene repression. This results in a more positively charged histone protein which can interact more strongly with negatively charged DNA, resulting in a more compacted chromatin structure and reduced accessibility of transcription factors to the DNA.

A Key Reaction in Gene Repression Is the Deacetylation of This/these