What is the type of coiling in $DNA$

Nucleosomes are bounded by

In his experiments on the chemistry of $DNA$, Chargaff estimated the base composition of human sperms and found that Adenine constituted $31\%$ and Guanine $19\%$. The quantity of Cytosine in the $DNA$ of human somatic cell is likely to be

$DNA$ polymerase enzyme is responsible for the synthesis of

In $DNA$ if $10\%$ guanine is present, how much thymine is present

Nucleotides are building blocks of nucleic acids. Each nucleotide is a composite molecule formed by