4.2 Study Guide Flashcards
1
Q
What does Helicase do?
A
Unzips the DNA
2
Q
What does Primase do?
A
adds RNA primers
3
Q
What does DNA Polymerase III do?
A
adds new nucleotide
4
Q
What does DNA Polymerase I do?
A
Removes RNA primers and replaces it with DNA Neucotides
5
Q
What does Ligase do?
A
Fragments of DNA joined together
6
Q
what are the 5 steps of DNA replication
A
- Helicase
- Primase
3, DNA Polymerase III - DNA Polymerase I
- Ligase
7
Q
How do you know which strand is the lagging and which is the leading?
A
The lagging stand goes from 5´ to 3´ while the leading strand starts at 3´ and ends at 5´
8
Q
Which enzyme unzips the DNA?
A
helicase
9
Q
Which enzyme is the very last step?
A
Ligase
10
Q
A
