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DanielleElmas [232]
3 years ago
15

What is the chemical composition of chromatin?

Biology
1 answer:
NeX [460]3 years ago
3 0
Chromatin is composed of a DNA and a protein. The DNA is a double helix in the cell nucleus packaged by histones, a special type of protein. Together they form the chromatin with a basic structural unit called nucleosome. The chromatin's functions are:

a. to package DNA into smaller volumes to fit in the cell.
b. to allow mitosis by reinforcing the DNA macromolecule
c. to prevent damaging of the DNA
<span>d.to control gene expression and DNA replication</span>
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