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B12-DNA Replication

DNA UNIT

QA
Gyrase relieves tension of the unwinding of the double helix(prokaryotes)
Helicase breaks the H bonds of complimentary strands
Primases make the RNA primer(approximately 10 nucleotides long in eurkaryotes)
DNA Polymerases Add DNA nucleotides to new strands
Ligases attach okazaki fragments on the lagging strand
DNA replication energy source ATP/GTP
List the process of synthesising the Leading strand: Primase creates the primer, Elongation by DNA Polymerase 3, Replacement of RNA primer with DNA by DNA Polymerase 1, Replication towards the fork
List the process of synthesising the Lagging strand: Priming for okazaki fragments by primase, elongation of fragment by DNA Polymerase 3, replacement of RNA primer with DNA by DNA Polymerase 1, joining of fragments by ligase, replication away from fork
Which DNA polymerase proofreed? 1 and 2
What happens with damaged DNA? DNA nuclease cuts out the damaged segment, DNA polymerase and ligase attach new nucleotide
Created by: bioger
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