|
Answer» basic , negatively charged basic , positively charged acidic, positively charged acidic, negatively charged. Solution :(B) : 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.
|