Bacteria were grown in a medium containing heavy isotope of nitrogen ($N^{15}$) for many generations and all their $DNA$ contained many heavy nitrogen only. A bacterium of this type was transferred to normal medium and allowed to duplicate. After two divisions of heavy $DNA$ is likely to be that
Only one daughter cell will have heavy $DNA$
Two daughter cells have normal $DNA$ and other two have both normal and heavy $DNA$
All daughter cells have heavy $DNA$
Half daughter cells have heavy $DNA$ and other half have normal $DNA$
Taylor conducted the experiments to prove semi conservative mode of chromosome replication on
Which of the following figures correctly represents the replication fork formed during $DNA$ replication
Describe Replication of $DNA$ and Give experimental proof for it.
During $DNA$ replication which of the following does not act as substrates?
Choose the correct statement about the direction of $DNA$ strand