what is origin of replication?
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Origin of Replication (Ori) :-
○ The synthesis of new DNA molecules from a pre-existing DNA called replication.
○ DNA replication starts at a point called Ori (Origin of replication).
○ In bacteria and viruses there is only one Ori where as in eukaryotes there may be several Ori.
○ A unit of rerplication with one origin is called replicon.
○ During replication, the hydrogen bonds between two strands of DNA helices are broken down and the strands unwind and separate.
○ The enzyme which participate in this process of unwinding helix are called helicase.
○ The separation occurs in manner resembling the unzipping of zip.
○ The separated strands act as template strands for the synthesis of new strand.
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