WorksheetsDNA Structure and Replication Quiz
Total questions: 15
Worksheet time: 8mins
Name
Class
Date
1.
1. Which of these is not a nitrogenous base?
a)
Adenine
b)
Leucine
c)
Guanine
d)
Cytosine
2.
2. What molecule makes up the DNA backbone along with the phosphates?
a)
Base
b)
Sugar
c)
Phosphate group
d)
Hydrogen bond
3.
3. DNA replication is called ____________________, because one strand is new and one strand is old?
a)
Semi-conservative
b)
Conservative
c)
Dispersive
d)
Independent
4.
4. What type of bond holds the nitrogen bases together?
a)
Phosphate bond
b)
Hydrogen bond
c)
Nitrogen bond
d)
Ionic Bond
5.
5. During DNA replication, which enzyme adds new nucleotides to build the new strands of DNA?
a)
Helicase
b)
DNA Polymerase
c)
Ligase
d)
Pepsin
6.
6. What are the three parts of a nucleotide?
a)
Deoxyribose sugar, Phosphate, Nitrogen Base
b)
Adenine, Phosphate, Helicase
c)
Deoxyribose sugar, Phosphate, Amino Acid
d)
Lipid, Nitrogen Base, Phosphate
7.
7. Which enzyme unwinds or unzips the DNA in replication?
a)
Helicase
b)
DNA Polymerase
c)
Ligase
d)
Pepsin
8.
8. What is the shape of DNA called?
a)
Single helix
b)
Double helix
c)
Triple helix
d)
Quadruple helix
9.
9. Which base is complimentary to Adenine?
a)
Thymine
b)
Cytosine
c)
Guanine
d)
Adenine
10.
10. If Cytosine is present at 30%, what is the percent of Adenine?
a)
5
b)
15
c)
30
d)
20
11.
11. Which steps are in the correct order for DNA replication?
a)
Original DNA unwinds, New nucloetides are added, DNA rewinds with two new molecules
b)
New nucloetides are added, DNA rewinds with two new molecules, Original DNA unwinds
c)
DNA rewinds with two new molecules, New nucloetides are added, Original DNA unwinds
d)
none of the above
12.
12. Each nucleotide has three parts, which part is labeled "A" in the image below?
a)
Sugar
b)
Phosphate
c)
Base
13.
13. Each nucleotide has three parts, which part is labeled "B" in the image below?
a)
Sugar
b)
Phosphate
c)
Base
14.
14. Where in the cell does DNA Replication take place?
a)
Lysosome
b)
Cytoplasm
c)
Nucleus
d)
Golgi Apparatus
15.
15. What is the complementary strand of DNA for the following DNA sequence: ATTCGAGT?
a)
TAAGCTCA
b)
GCTCAGGA
c)
ACTCGAAT
d)
TAGTGATA
100 %
