Which one of the following statements about Histones is wrong?
Histones are organized to form a unit of $8$ molecules.
The $pH$ of histones is slightly acidic.
Histones are rich in amino acids $-$ Lysine and Arginine.
Histones carry positive charge in the side chain.
Give the historical background of $DNA.$
State the physical structure of DNA.
Identify $X$ and $Y$
The reason for double helical structure of $DNA$ is operation of