How DNA Works Flashcards

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

What are the types of replication of DNA?

A

Conservative

Semiconservative

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

In conservative replication, what do the two daughter strands contain?

A

One helix is purely original DNA

One helix is purely new DNA

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

How does conservative replication work

A

The double helix remains intact and new strands form on the outside

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

In semiconservative replication, what do the 2 daughter cells contain?

A

Both have one strand of original DNA and one strand of new DNA

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

How does semiconservative replication work?

A

The double helix unzips and each strand replicates to produce a second new strand

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

Which enzyme is used to unzip the DNA double helix?

A

DNA helicase

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

Which bonds are broken in the unzipping of DNA?

A

Hydrogen bonds between bases

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

Which enzyme lines up and catalyses the linking up of nucleotides along the template strand?

A

DNA polymerase

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

What is DNA ligase used for?

A

Catalyses the formation of phosphodiester bonds between 2 strands of DNA

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