How many types of histones form core part of nucleosome?
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a
Two
b
Five
c
Three
d
Four
answer is D.
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Detailed Solution
There are five types of histone proteins i.e., H1, H2A, H2B, H3 and H4. Four of them occurs in pairs to produce histone octamer or nu-body (two copies of each H2A, H2B, H3 and H4), which constitutes core part of nucleosome.