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What is In which of the following phase, DNA doubling occurs ? and explain in detail?
Ans: b (S phase) Ref: Harper, 23th ed, p. 428DNA replication occurs only at a specified time during the life span of a cell. This period is referred to as synthetic or S phase.Few points about: DNA POLYMERASEProkaryotic DNA polymerase:DNAP -I: Removal of RNA primers and replacing with DNA (5'-3' exonuclease).DNAP - II: DNA proof reading and repair.DNAP- HI: Synthesis of leading and lagging strand.Eukaryotic DNA polymerase:DNAP d: Synthesis of leading strand.DNAP d: Synthesis of lagging strand.DNAP g- Replicates mitochondrial DNA.DNAP band e: Primarily DNA repair.