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AP Bio Insta-Review Topic 6.2*: Replication

Total questions: 28

Worksheet time: 14mins

Name
Class
Date
1.

Which direction is DNA read for DNA replication?

a)

3' -> 5’

b)

5' -> 3’

c)

C terminus to N terminus

d)

N terminus to C terminus

2.

Which direction is DNA synthesized in DNA replication?

a)

3' -> 5’

b)

5' -> 3’

c)

C terminus to N terminus

d)

N terminus to C terminus

3.

What is found at the 3' end and 5' ends of DNA?

4.

How is DNA replicated?

a)

Conservative

b)

Dispersive

c)

Lagging

d)

Semiconservative

5.

What does it mean to say the DNA replicates semiconservative?

6.

Describe the experiment from Meselson & Stahl that proved semiconservative

7.

Enzymes responsible for sealing phosphodiester linkage

a)

Helicase

b)

Ligase

c)

Polymerase

d)

Topoisomerase

8.

Enzymes responsible for relieve strand of double helix

a)

Helicase

b)

Ligase

c)

Polymerase

d)

Topoisomerase

9.

Enzymes responsible for breaking H bonds between strands

a)

Helicase

b)

Ligase

c)

Polymerase

d)

Topoisomerase

10.

Enzymes responsible for synthesis of new DNA

a)

Helicase

b)

Ligase

c)

Polymerase

d)

Topoisomerase

11.

DNA polymerase can start replication independently 

a)

True

b)

False

12.

What does DNA Polymerase require to initiate replication? 

13.

DNA is...

a)

Antiparallel

b)

Parallel

14.

What is meant by leading and lagging strand?

15.

Which enzyme connects the Okazaki fragments (lagging)

a)

Helicase

b)

Ligase

c)

Polymerase

d)

Topoisomerase

16.

What is at the 5’ end of DNA?

a)

Hydrogen

b)

Hydroxyl

c)

Nitrogenous Base

d)

Phosphate

17.

What is at the 3’ end of DNA?

a)

Hydrogen

b)

Hydroxyl

c)

Nitrogenous Base

d)

Phosphate

18.

Describe the directionality of DNA

a)

Antiparallel

b)

Parallel

c)

Perpendicular

d)

Single Stranded 5’ to 3’

19.

What does it mean that the DNA is antiparallel?

20.

What is the enzyme responsible for breaking hydrogen bonds between nitrogenous bases?

a)

DNA polymerase

b)

Helicase

c)

Ligase

d)

Primase

21.

What enzyme is responsible for synthesizing RNA start?

a)

DNA polymerase

b)

Helicase

c)

Ligase

d)

Primase

22.

What enzyme is responsible for making the new DNA strand?

a)

DNA polymerase

b)

Helicase

c)

Ligase

d)

Primase

23.

Why does DNA require an RNA start (primer)?

24.

Which direction is DNA read?

a)

3’ to 5’

b)

5’ to 3’

c)

Right to Left

d)

Left to Right

25.

Which direction is DNA synthesized?

a)

3’ to 5’

b)

5’ to 3’

c)

Right to Left

d)

Left to Right

26.

Which strand is formed continuously into the replication fork?

a)

Lagging strand

b)

Leading strand

27.

Which strand is formed discontinuously away from the replication fork?

a)

Lagging strand

b)

Leading strand

28.

Lagging strand is made 3’ to 5’ and leading strand is made 5’ to 3’.

a)

True

b)

False