$DNA$ repairing is done by

For the strand separation and stabilisation during $DNA$ replication,which of the following set of enzymes and proteins are required?

During $DNA$ replication, the two strands separate. Each of these acts as a template for the synthesis of a new strand. This mode of replication is called:

Given below are the two statements.
Statement $I$: In prokaryotes,there is only one replicon,however,in eukaryotes,there are several replicons in tandem.
Statement $II$: The two separated strands in a replicon of $DNA$ are prevented from rejoining by helicase enzyme.
In the light of the above statements,choose the correct answer from the options given below.

Give scientific reasons: The replication of $DNA$ is determined by $DNA$ itself.

At the end of $DNA$ replication,the $DNA$ molecule has: