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nucleosome contains____ of DNA helix


( a ) 400 bp
( b ) 150 bp
( c ) 200 bp
( d ) 100 bp

1 Answer

Ans: (C) 200 bp
In eukaryotes, there is a set of positively charged, basic proteins called histones. Histones are organised to form a unit of 8 molecules called histone octomer. The negatively charged DNA is wrapped around positively charged histone octomer to form a structure called nucleosome. A typical nucleosome contains 200 bp of DNA helix. Nucleosome constitute the repeating unit of a structure in nuclear called Chromatin.
answered Dec 2, 2016 by suganyadevi.p
 
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Tag:MathPhyChemBioOther
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