A) nucleolus
B) genes
C) microfilaments
D) histones
Correct Answer: D
Solution :
[d] Histories are main structural proteins found in eukaryotic cells. The nucleosome core is made up of four types of histone proteins, i.e. \[{{H}_{2}}A,\text{ }{{H}_{3}}B,\text{ }{{H}_{3}}and\text{ }{{H}_{4}}\] occurring in pairs. 200 bp of DNA helix wraps around the nucleosome by turns, plugged by \[{{H}_{1}}\] histone protein. So, nucleosome consists of histones.
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