Which of the following statement is correct regarding the process of replication in $E$.coli?
The $DNA$ dependent $RNA$ polymerase catalyses polymerization in one direction, that is $5^{\prime} \rightarrow 3^{\prime}$
The $DNA$ dependent $DNA$ polymerase catalyses polymerization in $5^{\prime} \rightarrow 3^{\prime}$ as well as $3^{\prime} \rightarrow 5^{\prime}$ direction
The $DNA$ dependent $DNA$ polymerase catalyses polymerization in $5^{\prime} \rightarrow 3^{\prime}$ direction
The $DNA$ dependent $DNA$ polymerase catalyses polymerization in one direction that is $3^{\prime} \rightarrow 5^{\prime}$
In which type of $DNA$ replication of the two newly formed molecules one is purely a new one and the other one is old
Describe various enzymes involved for $DNA$Replication.
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
During $DNA$ replication which of the following does not act as substrates?
Self replication is occurred in