Question : Refer the given figure of nucleosome and select the option that correctlyidentifies the parts A,B and C.

Question : Refer the given figure of nucleosome and select the option

1.	Question : Refer the given figure of nucleosome and select the option that correctlyidentifies the parts A,B and C.
Answer» `{:(A,B,C,),("DNA"," Histone octamer",H_(1)"histone", ),(,,,):}` `{:(A,B,C,),("Histone octamer",H_(1)"histone",DNA, ),(,,,):}` `{:(A,B,C,),("Histone octamer",DNA,H_(1)"histone", ),(,,,):}` `{:(A,B,C,),(DNA,H_(1)"histone","Histone octamer" ,),(,,,):}` Solution :(c) : In eukaryotes, DNA organisation is COMPLEX. There is a set of POSITIVELY changed, basic porteins called histones. Histones are rich in the basic aminoacid residues lysine and arginine. There are five types of histone proteins-`H_(1),H_(2)A,H_(2)B, H_(3) and H_(4)`. Four of them`(H_(2)A, H_(2)B, H_(3) and H_(4))` produce histone octamer called nu body or core of nucleosome . The negatively CHARGED DNA is wrapped around the positively charged histone octamer to form nucleosome. DNA CONNECTING two adjacent NUCLEOSOMES is called linker DNA which bears `H_(1)` histone proteins.