WorksheetsDNA Replication
Total questions: 11
Worksheet time: 9mins
Name
Class
Date
1.
Which of the following best describes a DNA molecule?
a)
double helix
b)
contains ribose
c)
made of amino acids
d)
contains Uracil
2.
In a molecule of double-stranded DNA, the amount of Adenine present is always equal to the amount of
a)
cytosine
b)
guanine
c)
thymine
d)
uracil
3.
Nitrogenous bases are joined by which type of bond?
a)
polar bonds
b)
ionic bonds
c)
covalent bonds
d)
hydrogen bonds
4.
DNA replication results in two DNA molecules,
a)
each one with two original strands
b)
each one with two new strands
c)
each one with one new strand and one original strand
d)
one with two new strands and the other with two original strands
5.
In what phase of the cell cycle does DNA replication take place?
a)
G1
b)
S
c)
G2
d)
M
6.
Which enzyme is responsible for adding nucleotides ("The Builder")?
a)
Topoisomerase
b)
DNA Polymerase
c)
Ligase
d)
Primase
7.
The two strands of DNA are
a)
Parallel
b)
Antiparallel
c)
Perpendicular
d)
At Right Angles
8.
Which sequence of DNA bases would pair with this partial strand
ATG TGA CAG
ATG TGA CAG
a)
ATG TGA CAG
b)
TAC ACT GTC
c)
GTA AGT GAC
d)
CAT TCA CTG
9.
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
10.
Okazaki fragments form on the:
a)
lagging strand
b)
leading strand
c)
base-pairs
d)
5' end
11.
Which enzyme proofreads and removes RNA Primase
a)
Ligase
b)
Polymerase 1
c)
Polymerase 3
d)
Helicase
100 %
