WorksheetsThe Structure of DNA - Quiz
Total questions: 16
Worksheet time: 8mins
Name
Class
Date
1.
Your Name:
4 lines
2.
1. What does DNA stand for?
a)
Deoxynitrogenous Acid
b)
Deribo Nuclein Acid
c)
Deoxyribonucleic Acid
d)
Denatured Nucleic Acid
3.
2. What shape is a DNA molecule?
a)
Triple Helix
b)
Single Helix
c)
Double Helix
d)
Quadruple Helix
4.
3. There are four nitrogenous bases found in DNA. Three are cytosine, adenine and guanine. What is the fourth?
a)
Thymine
b)
Trimine
c)
Adenosyne
d)
Ribose
5.
4. The bases form complimentary base pairs. Which pairs shown are correct?
a)
A - T and C - G
b)
A - C and T - G
c)
A - G and C - T
6.
6. What is the name of the repeating units (monomers) that make up DNA?
a)
Nucleus
b)
Nucleotides
c)
Amino Acids
d)
Monosaccharides
7.
7. Which type of bonds form between complementary base pairs?
a)
Oxygen
b)
Hydrogen
c)
Phosphodiester
d)
Covalent
8.
8. In a double stranded DNA molecule, the percentage of cytosine is 18. What would be the percentage of thymine?
a)
32%
b)
16%
c)
64%
d)
18%
9.
9. If a double stranded DNA has 20% of guanine, what will be the percentage of adenine in it?
a)
30%
b)
60%
c)
15%
d)
20%
10.
10. A DNA strand has the following bases: A A G C C A. What are the bases on its complimentary strand?
a)
A A G C C A
b)
A C C G A A
c)
T T C G G T
d)
C C A T T C
11.
11. Based on the image of the DNA molecule, what would letter Y be?
a)
Thymine
b)
Cytosine
c)
Adenine
d)
Deoxyribose
12.
12. Based on the DNA model, what does letter S represent?
a)
Deoxyribose Sugar
b)
Nitrogenous Base
c)
Hydrogen Bonds
d)
Phosphate Group
13.
13. How many total base pairs are there in the DNA molecule shown?
a)
1
b)
2
c)
3
d)
4
e)
5
14.
14. What two things make up the “backbone” of DNA?
a)
Nitrogenous Bases, Phosphates
b)
Nitrogenous Bases, Deoxyribose Sugar
c)
Deoxyribose Sugar, Phosphates
15.
15. DNA makes up genes which are found on Chromosomes. How many pairs of chromosomes do humans have in their cells?
a)
13
b)
23
c)
46
d)
20
16.
16. What structure in the cell contains all the genetic material in the cell?
a)
Ribosome
b)
Cytoplasm
c)
Chlorophyll
d)
Nucleus
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