By Weight, Chromatin Consists Roughly Of

Question

By weight, chromatin consists roughly of
A)1/3 DNA, 1/3 histones, and 1/3 nonhistones.
B)1/3 DNA and 2/3 acidic proteins.
C)1/2 DNA, 1/4 histones, and 1/4 basic proteins.
D)1/4 DNA, 1/4 RNA, 1/4 histones, and 1/4 nonhistones.

Accepted Answer

Chromatin is composed of DNA, histones (which are basic proteins), and nonhistone proteins. The approximate distribution by weight is one-third DNA, one-third histones, and one-third nonhistone proteins, making option A correct.