Which of the following structures are present in core particle of nucleosome?
Octamer of histone proteins
$200$ bp of $DNA$
Non-histone proteins
Linker $DNA$
Substances known as 'heredity carriers' are
In between two nucleosomes, how many nucleotide pairs are present
During replication of a bacterial chromosome $DNA$ synthesis starts from a replication origin site and
Messenger $RNA$ is produced in
The total number of nitrogenous bases in human genome is estimated to be about