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The structure in chromatin seen as 'bead...

The structure in chromatin seen as 'beads-on' string' when viewed under electron microscope are called

A

Nucleosome

B

Nucleolus

C

Chromosome

D

Lysosome

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The correct Answer is:
A
(a) In eukaryotes DNA is tightly bound to histones which form a DNA protein particles called nucleosome . Each nucleosome contains 2 copies of each `H_(2A) , H_(2B) , H_(3)` and `H_(4)` histone protein bounded on 146 BP of DNA . Each nucleosome bead is linked to next nucleosome bead by linker DNA .
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