DNA replication Flashcards

1
Q

what specific part of the DNA does DNA replication start

A

origin of replication

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

the origin of replication denotes the are of active replication known as

A

replication fork

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

what enzyme separates the strands of double helix

A

helicase

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

what stabilize the newly single stranded regions

A

single stranded binding proteins

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

This enzyme makes sure that the double stranded dna outside the replication fork do not supercoil

A

DNA gyrase

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What enzyme catalyzes the addition of new nucelotides to the newly single stranded regions

A

DNA polymerase

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

what proteins help hols the DNA polymerase in place

A

Beta clamp
Clamp loader

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Short sequence of DNA like primers have to be paired to the template strands to start the replication by what enzyme

A

Primase

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Continuous synthesis

A

3’-5’ leading strand

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

discontinuous synthesis

A

5’-3’ lagging strand

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

lagging strand makes

A

okazaki fragments

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

what enzyme adds short sequences of nucleotides, okazaki fragments, to the primer filling in the gap

A

DNA polymerase III

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

enzyme that replaces primase with DNA nucleotides

A

DNA polymerase 1

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

enzymes that ensures that the bonds in between the fragments and the nuceoltides are glued together

A

DNA ligase

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Can DNA polymerase begin to add a nucleotide without a primer?

A

NO

How well did you know this?
1
Not at all
2
3
4
5
Perfectly