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A nucleosome is composed of a. A histone octamer and about 146 bp of DNA that...

A nucleosome is composed of

a. A histone octamer and about 146 bp of DNA that wraps around the octamer about 1.6 times

b. A histone tetramer and about 146 bp of DNA that wraps around the octamer about 1.6 times

c. A histone octamer and about 146 bp of RNA that wraps around the octamer about 1.6 times

d. A histone octamer and about 246 bp of DNA that wraps around the octamer about 1.6 times

e. A histone octamer and about 146 bp of DNA that wraps around the octamer about 10.6 times

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Answer:a.a histone octamer and about 146 bp of DNA that wraps around the octamer about 1.6 times.

In nucleosome a DNA strand is wrapped around a unit of histone molecules called histone octamer. Histone octamer is made of 2 copies of cor histones H2A,H2B,H3,H4. And H1 histone acts as linker histone that stabilizes the zig zag manner of DNA double helix.a DNA strand makes about 1.6 times wrapping around core of histone octamer forming nucleosome. This wrapped DNA length consists of about 146 base pairs of DNA.

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