The substance that acts as connecting link between two generations is
In sea urchin $DNA$, which is double stranded, $17\%$ of the bases were shown to be cytosine.The percentages of the other three basesexpected to be present in this $DNA$ are
If the length of a $DNA$ molecule is $1.1$ metres, what will be the approximate number of base pairs?
The chemical nature of chromosome is as follows
..............is common for both $DNA$ and $RNA$ but.............is present only in $DNA$