NEET 2022 Botany Chromatin Structure Multiple Correct Question
Read the following statements and choose the set of correct
statements:
i. Euchromatin is loosely packed chromatin
ii. Heterochromatin is transcriptionally active
iii. Histone octomer is wrapped by negatively charged DNA in nucleosome
iv. Histone are rich in lysine and arginine
v. A typical nucleosome contains 400 bp of DNA helix
ii, v Only
i, iii, v Only
ii, iv, v Only
i, iii, iv Only
Correct Answer
Detailed Explanation
Euchromatin is loosely packed and transcriptionally active, histones are rich in basic amino acids, and DNA wraps around histones in nucleosomes.
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