5.2 study guide Flashcards
1
Q
The enzyme that separates the parental strands of DNA to start replication.
A
helicase
2
Q
The Y-shaped region where the parental strands of DNA are being unwound.
A
replication fork
2
Q
The specific site where DNA replication begins.
A
origin of replication
3
Q
The enzyme that catalyzes the synthesis of new DNA by adding nucleotides to a preexisting chain.
A
DNA polymerase
4
Q
The direction that new DNA strands grow.
A
5’ to 3’
5
Q
The new strand of DNA that can be added to continuously.
A
leading strand
5
Q
Portions of the lagging strand.
A
Okazaki fragments
6
Q
Helicase breaks what type of bond?
A
Hydrogen bond
7
Q
phosphate-sugar(deoxyribose)-nitrogens bases make what?
A
nucleotides
8
Q
3’ functional group and 5’ functional group
A
The 3’ functional group is hydroxyl while the 5’ functional group is phosphate
