Escherichia coli fully labelled with $15 \mathrm{~N}$ is allowed to grow in $14 \mathrm{~N}$ medium. The two strands of $DNA$ molecule of the first generation bacteria have
Escherichia coli fully labelled with $15 \mathrm{~N}$ is allowed to grow in $14 \mathrm{~N}$ medium. The two strands of $DNA$ molecule of the first generation bacteria have
- A
different density and do not resemble with their parent $DNA.$
- B
different density but resemble with their parent $DNA.$
- C
same density and resemble with their parent $DNA.$
- D
same density but do not resemble with their parent $DNA.$
Similar Questions
Process of $DNA$ replication is effected by an enzyme called
Process of $DNA$ replication is effected by an enzyme called
E. coli has only $4.6 \times 10^{6}$ base pairs and completes the process of replication within 18 minutes; then the average rate of polymerisation is approximately
E. coli has only $4.6 \times 10^{6}$ base pairs and completes the process of replication within 18 minutes; then the average rate of polymerisation is approximately
- [NEET 2020]
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
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
- [AIPMT 1993]
Which of the following figures correctly represents the replication fork formed during $DNA$ replication
Which of the following figures correctly represents the replication fork formed during $DNA$ replication
$DNA$ replicates semiconservatively, It was experimentally performed by.
$DNA$ replicates semiconservatively, It was experimentally performed by.