$DNA$ polymerase helps in
Joining bits of $DNA$
Splitting or separation of two strands of $DNA$
Renaturation
Denaturation
Discuss the significance of heavy isotope of nitrogen in the Meselson and Stahl’s experiment.
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
The experimental proof for. semiconservative replication of $DNA$ was first shown in a
In Meselson and Stahl's experiments, heavy $DNA$ was distinguished from normal $DNA$ by centrifugation in
It has not escaped our notice that the specific pairing we have postulated immediately suggests a possible copying mechanism for genetic material. This is written by