NEET2022Botany-Genetics

NEET 2022 Botany Chromatin Structure Multiple Correct Question

Type: Multiple Correct-conceptual-Medium-Class 12

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

A

ii, v Only

B

i, iii, v Only

C

ii, iv, v Only

D

i, iii, iv Only

Correct Answer

Option D

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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