The most important chemical group that determines how tightly histones bind DNA is
A) acetyl.
B) methyl.
C) ethyl.
D) phosphate.
E) glucose.

Name: The most important chemical group that determines how tightly histones bind DNA is A) acetyl. B) methyl. C) ethyl. D) phosphate. E) glucose.
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Question

Quizplus · Accepted Answer

Acetyl groups, when added to histones, reduce the positive charge on histones, decreasing their affinity for the negatively charged DNA and thus loosening the DNA-histone interaction.

The Most Important Chemical Group That Determines How Tightly Histones