Histones are _______ that are usually associated with _________. Question 1 opti

Question

Histones are _______ that are usually associated with _________.

Question 1 options:

coenzymes derived from histidine; enzymes

acidic proteins; RNA

basic proteins; DNA

acidic proteins; DNA

basic proteins; RNA

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Question 2 (1 point)

Which of the following best characterizes the protein composition of the nucleosome core particle?

Question 2 options:

H2A H2B (H3 H4)2

H1 H2 H3 H4

(H1 H2 H3 H4)2

(H2A H2B H3 H4)2

H2A H2B H3 H4

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coenzymes derived from histidine; enzymes

acidic proteins; RNA

basic proteins; DNA

acidic proteins; DNA

basic proteins; RNA

Explanation / Answer

Histones are alkaline proteins present in eukaryotic nucleus. They wrap the DNA into an orderly

fashion.

The histones are basic proteins and are able to bind acidic DNA .

Hence for question 1, option c is the answer.

Nucleosome is the basic unit of DNA consisting of 8 histone proteins namely

two H2As, two H2Bs, two H3s, two H4 histones each.

Hence option d is the answer.

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