$NHC$ structural proteins are
Basic proteins rich in lysine, arginine
Regulatory proteins
Catalytic proteins rich in tryptophan and arginine
Required for packaging of chromatin at higher levels
Which one of the following histone is not present in the core particle of nucleosome
Nucleosome consists of
Which one of the following is not applicableto $RNA$ ?
$DNA$ polymerase links nucleotide by forming which type of bond:
The reason for double helical structure of $DNA$ is operation of