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WorksheetsDNA REPLICATION REVISION
Total questions: 15
Worksheet time: 25mins
Name
Class
Date
1.
The enzyme that unzips the DNA to prepare for replication
a)
helicase
b)
replicase
c)
polymerase
d)
synthase
2.
In what phase of the cell cycle does DNA replication take place?
a)
G1
b)
S
c)
G2
d)
M
3.
Which enzyme is responsible for adding nucleotides?
a)
Topoisomerase
b)
DNA Polymerase
c)
Ligase
d)
Primase
4.
Which enzyme seals okazaki fragments together on the lagging strand?
a)
Topoisomerase
b)
Helicase
c)
Polymerase
d)
Ligase
5.
What is A?
a)
Leading strand
b)
Lagging strand
c)
Okazaki Fragments
d)
DNA plymerase
6.
What strand is copied faster?
a)
Leading
b)
Lagging
7.
Which of the following must happen first in order for DNA replication to occur?
a)
DNA polymerase binds to the leading strand
b)
DNA is unwound
c)
Hydrogen bonds form between bases
d)
chromosomes condense
8.
Which of the following is required for DNA replication to occur?
a)
DNA helicase
b)
DNA ligase
c)
DNA polymerase
d)
all of these
9.
Which enzyme proofreads and removes RNA Primase
a)
Ligase
b)
Polymerase 1
c)
Polymerase 3
d)
Helicase
10.
Structure C is
a)
helicase
b)
primase
c)
DNA polymerase III
d)
gyrase
11.
The new DNA on the leading strand is synthesized in the _________ direction
a)
5' to 3'
b)
3' to 5'
12.
DNA Replication begins at:
a)
Start Codons
b)
Origins
c)
Promoters
d)
Histones
13.
The enzyme that removes RNA Primers and fills in the gaps with DNA Nucleotides is
a)
DNA Polymerase III
b)
DNA Polymerase I
c)
DNA Polymerase II
d)
Primase
14.
The enzyme that joins together small segments of newly replicated DNA is:
a)
DNA Polymerase III
b)
DNA Polymerase I
c)
DNA Polymerase II
d)
DNA Ligase
15.
Which of the following is false about Klenow Fragment
a)
b)
5′→3′ exonuclease activity
c)
324-928 residue of polymerase 1
d)
polymerization activity
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