Synthesis of any protein in a cell is determined by:

Given below are two statements:
Statement $I$: In prokaryotes,the positively charged $DNA$ is held with some negatively charged proteins in a region called nucleoid.
Statement $II$: In eukaryotes,the negatively charged $DNA$ is wrapped around the positively charged histone octamer to form nucleosome.
In the light of the above statements,choose the correct answer from the options given below:

The reason for the double helical structure of $DNA$ is the operation of

$A$ segment of $DNA$ that can change its position is known as..........?

Why are histone proteins positively charged?

The number of $H$-bonds between Guanine and Cytosine is .....