Question

Chromatin consists of:
(1) RNA
(2) DNA
(3) Matrix
(4) Histones

• A. 1,2 and 3 are correct.
• B. 1 and 2 are correct.
• C. 2 and 4 are correct.
• D. 1 and 3 are correct.

Answer 1

Answer: (C)

Chromatin is a fibrous hereditary material formed by DNA-histone complex. Chromatin fibres are of two types, narrow $(30-80 \,\mathring{A} )$ elongated lightly stained transcriptionally active euchromatin and broader $( 250\,\mathring{A}$ or more) darkly stained transcriptionally inactive granular heterochromatin. Chromatin is actually folded nucleosome (DNA $+$ histones) containing DNA chains.