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प्रश्न
In which phase of the cell cycle does replication occur in Eukaryotes? What would happen if cell-division is not followed after DNA replication.
उत्तर
DNA replication occurs in S phase of cell cycle in eukaryotes.
If cell division is not followed after DNA replication then the replicated chromosomes (DNA) would not be distributed to daughter nuclei. A repeated replication of DNA without any cell division results in the accumulation of DNA inside the cell. This would increase the volume of the cell nucleus, thereby causing cell expansion.
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संबंधित प्रश्न
Describe Meselson and Stahl’s experiment that was carried in 1958 on E.Coli. Write the conclusion they arrived at after the experiment.
Explain the process of DNA replication with the help of a schematic diagram.
Discuss the role the enzyme DNA ligase plays during DNA replication.
Describe the experiment that helped demonstrate the semi-conservative mode of DNA replication.
Draw a labelled diagram of a “replicating fork” showing the polarity.
If Meselson and Stahl's experiment is continued for four generations in bacteria, the ratio of `15_N/15_N:15_N/14_N:14_N/14_N` containing DNA in the fourth generation would be ______.
First experimental proof for semi-conservative DNA replication was shown in ______.
In which type of DNA replication of the two newly formed molecules, one is purely a new one and the other one is old?
During which phase of the cell cycle, does DNA replication take place?
The DNA molecules of the same size were extracted from E. coli and Plasmodium vivax. It was discovered that both the DNA molecules had one target site each for the restriction enzyme Hind II. After being digested with Hind II, the DNA fragments were subjected to gel electrophoresis.
With reference to the diagram given below, identify the lanes that represent the DNA fragments of E. coli and Plasmodium vivax respectively. Justify your answer with a reason for each.
