Which one of the following peak absorption of ultraviolet light by heterocyclic bases $(Nitrogen bases)$
$150\ nm$
$26\ nm$
$75\ nm$
$260\ nm$
Which type of $RNA$ is most abundant in cell
A study of heredity and hereditary character is called as
In the technique of $DNA$ fingerprinting digestion of $DNA$ is followed by
Synthesis of leading and lagging strand require
Crossing over takes place between