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Replication of DNA - Coggle Diagram
Replication of DNA
Semiconservative
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Process
Step2 DNA polymerase III makes DNA from the RNA primers. DNA primase hops back to the opening of the fork and makes a second RNA primer for the lagging strand.
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Step3 DNA polymerase III continues to elongate the leading strand. DNA polymerase III synthesizes DNA from the second primer in the lagging strand. DNA polymerase I removes the first primer and replaces it with DNA.
Step4 the fragments from the lagging strand is known as okazaki fragments. These are joined by DNA ligase.
Protiens
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DNA topoisomerase- ahead of the replication fork and alleviates coiling caused by the action of helicase.
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Telomeres
Telomerase enzyme
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Step4 Primase makes a RNA primes at the end of the telomere and DNA polymerase synthesizes a complementary strand in the 5'-3' direction. RNA primer is removed.
Series of short nucleotide sequences repeated
at the ends of chromosomes in eukaryotes. At the 3' end it is known as 3' overhang. Requires special form of replication.