At the end of replication,the contribution of nucleotides from mother $DNA$ is . . . . . . percent.

What is the small opening region of the $DNA$ helix where replication occurs called?

If a hybrid $\text{DNA}$ $(N^{15}N^{14})$ is allowed to replicate in an $N^{14}$ medium,after three generations,how many $\text{DNA}$ molecules will contain $N^{15}$?

$DNA$ replication is

Which of the following sequences is found in Rous sarcoma virus?

Which of the following statements is correct about $DNA$ polymerase?