The length of $DNA$ in $E. coli$ is:

Assertion : $DNA$ is associated with proteins.
Reason : $DNA$ binds around histone proteins that form a pool and the entire structure is called a nucleosome.

What is absent in $DNA$?

In the structure of a dinucleotide,between which carbons of the sugars of two consecutive nucleotides is the phosphodiester bond formed?

What is the width of a $DNA$ molecule having five turns?

How many polynucleotide chains are present in the structure of $DNA$?