stages of DNA replication essay Flashcards
1
Q
1st paragraph
A
DNA “unwinds” and “unzips” as hydrogen bonds break, exposing 2 template strands.
2
Q
2nd paragraph
A
Primers attach to the 3’ end of the template, allowing DNA polymerase enzymes to bind.
3
Q
3rd paragraph
A
DNA polymerase moves along the template adding free complimentary DNA nucleotides to the 3’ end of the new strand.
4
Q
4th paragraph
A
This leading strand is made continuously as DNA polymerase can only add nucleotides to the 3’ end of the new strand.
5
Q
5th paragraph
A
The lagging strand is made in fragments, there are then joined by ligase enzymes
