The core particle of a nucleosome is composed of how many histone proteins?

Gene can be defined as

Identify the $INCORRECT$ statement regarding packaging of $DNA$ in prokaryotes.

In the structure of a nucleotide, the phosphate group is attached to which carbon of the sugar (in $5'$)?

If the sequence of one strand of $DNA$ is $5^{\prime}-ATGCATCG-3^{\prime}$,find the sequence of the complementary strand in the $5^{\prime} \rightarrow 3^{\prime}$ direction.

The $DNA$-histone complex can be removed from chromosomes by treatment with: