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DNA Replication (A Level)

Total questions: 10

Worksheet time: 6mins

Name
Class
Date
1.

DNA replication in eukaryotes occurs in

a)

Nucleoid

b)

Cytoplasm

c)

Nucleus

d)

Lumen of ER

2.
Adenine bonds with ______________.
a)
Guanine
b)
Thymine
c)
Cytosine
d)
Adenine
3.
Guanine bonds with ______________.
a)
Adenine
b)
Guanine
c)
Cytosine
d)
Thymine
4.

What best describes this molecule?

a)

DNA

b)

RNA

c)

Deoxyribonucleotide

d)

Ribonucleotide

5.

What's the difference between purine and pyrimidine nitrogen bases?

a)

Pyrimidines are only found in DNA, not RNA

b)

Pyrimidines have two rings, Purines have one

c)

Purines are only found in DNA, not RNA

d)

Purines have two rings, Pyrimidines have one

6.

DNA replication creates two strands of DNA from one. If pink is parental DNA and blue is new DNA - which picture demonstrates the accepted model of DNA replication after the SECOND replication cycle?

a)
b)
c)
d)
7.

The picture below shows an enzyme unwinding and unzipping DNA.

​What is the name of this enzyme?

a)

DNA Helicase

b)

DNA Ligase

c)

DNA polyermase

d)

RNA Polymerase

8.

Many enzymes are involved in DNA replication. Which is the correct order of enzymes involved in DNA replication from beginning to end?

a)

Helicase, DNA primase, DNA polymerase, Ligase

b)

RNA primase, Helicase, DNA polymerase, Ligase

c)

Helicase, RNA primase, DNA polymerase, Ligase

d)

DNA primase, Helicase, RNA polymerase, Ligase

9.

Which letter in the picture below depicts the leading strand in DNA replication?

a)

A

b)

C

c)

B

d)

None of the above

10.

Which letter in the given picture depicts the okazaki fragments?

a)

A - lagging strand

b)

C - leading strand

c)

B - lagging strand

d)

C - replication fork