Chapter 8.2 DNA Flashcards
1
Q
What is helicase?
A
Breaks hydrogen bonds between base pairs.
2
Q
What does primase do?
A
It adds DNA primer.
3
Q
What is DNA polymerase III?
A
Add new nucleotides to build new DNA strands.
4
Q
DNA Polymerase I?
A
Removes RNA primer and replaces it with complementary bases.
5
Q
What is ligase?
A
Repairs Okazaki fragments.
6
Q
What is the order of replication?
A
Helicase, Primase, DNA polymerase III, DNA Polymerase I, Ligase.
7
Q
The leading strands are?
A
Continous.
8
Q
The lagging strands are?
A
Semi-discontinuous.
9
Q
What does semi-discontinue mean?
A
Has to constantly stop and start again.
10
Q
What is semi-conservative replication?
A
Each of the two daughter molecules will have one old strand from the parental molecule and one newly made strand.
11
Q
What are Okazaki fragments?
A
Breaks in the newly added DNA.
