How does DNA replication work?
Biology
ScanSolve AI Answer
DNA replication is semiconservative — each strand serves as a template. Steps: 1) Helicase unwinds the double helix at the replication fork. 2) Primase adds RNA primers. 3) DNA polymerase III adds nucleotides (A-T, G-C) in the 5'→3' direction. Leading strand: continuous. Lagging strand: Okazaki fragments joined by ligase. 4) DNA polymerase I replaces RNA primers with DNA. 5) Ligase seals gaps. Result: two identical DNA molecules, each with one old and one new strand.
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