A nucleoside differs from a nucleotide in not having
Phosphate
Sugar
Nitrogen base
Phosphate and sugar
$DNA$ was first discovered by
Assertion : Histones are basic proteins of major importance in packaging of eukaryotic $DNA$. $DNA$ and histones comprise chromatin forming the bulk of eukaryotic chromosome.
Reason : Histones are of five major types $H_1,\,H_2A\,, H_2B,H_3$ and $H_4$ .
The term 'Nuclein' for the genetic material was used by
In a typical nucleosome if Adenine are $10$ then how many Guanine are present ?
Which one of the following histone is not present in the core particle of nucleosome