Module 32 Terms - DNA Replication Flashcards

You may prefer our related Brainscape-certified flashcards:
1
Q

Replication fork

A

The site where the two strands of the parental DNA double helix unwinds and separates into single strands

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

Semiconservative replication

A

Each new DNA molecule consists of one strands that was originally part of the parental molecule and one newly synthesized strand

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

Helicase

A

An enzyme that separates the strands of the parental double helix by breaking hydrogen bonds holding the base pairs together

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

Topoisomerase

A

An enzyme that works upstream from the replication fork to relieve the stress that results from unwinding the double helix at the replication fork

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

DNA polymerase

A

An enzyme that makes copies of DNA and therefore carries out DNA replication

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

Primer

A

A short stretch of RNA that serves as a starter for DNA synthesis

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

Leading strand

A

The DAUGHTER strand whose 3’ end is pointed toward the replication fork. This strand can be synthesized as one long, continuous polymer

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

Lagging strand

A

The daughter strand whose 3’ end is pointed away from the replication fork. This strand is synthesized in relatively short, discontinuous pieces known as Okazaki fragments

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

DNA ligase

A

Joins adjacent DNA fragments in the lagging strand

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

Proofreading

A

A process by which DNA polymerase can immediately correct its own errors

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