The two strands of $DNA$ are held together by
Phosphorus is present in
Degeneration of $DNA$ after heating can be studied by comparing
In an experiment, $DNA$ is treated with a compound which tends to place itself amongst the stacks of nitrogenous base pairs. As a result of this, the distancebetween two consecutive base increases. from $0.34- 0.44\,nm$ calculate the length of $DNA$ double helix $($ which has $2 \times 10^9\,bP)$ in the presence of saturating amount of this compound.
$DNA$ is not directly involved with the synthesis of the following