Name: ________________________ Class: ___________________ Date: __________
DNA Quiz 2017
Multiple Choice
Identify the choice that best completes the statement or answers the question.
____
1. Which best explains why children resemble their parents.
a. They eat the same foods.
c. They speak the same language.
b. They have similar DNA.
d. They have the same interests.
____
2. Which of these is a sugar?
a.
b.
____
1.
2.
c.
d.
3.
4.
3. The genetic material of an organism is composed of
a. lipids.
c. deoxyribonucleic acid.
b. proteins.
d. complex carbohydrates.
1
ID: A
Name: ________________________
____
ID: A
4. The diagram below shows Rosalind Franlin’s x-ray diffraction image of DNA.
How did this evidence affect the work of Watson and Crick?
a.
b.
____
It was used to determine the physical
c.
structure of DNA.
It was used to identify the four bases that d.
make up DNA.
It was used to develpo the theory of
independent assortment.
It was used to show that DNA was the
molecule of inheritance.
5. Look at the illustration below.
This illustration is a model of
a. RNA
b. a lipid
c.
d.
DNA
a protein
____
6. Which of the following statements best describes a DNA molecule?
a. It is a double helix.
c. It is composed of amino acids.
b. It contains the sugar ribose.
d. It contains the nitrogenous base uracil.
____
7. Which is the role of hydrogen bonds in the structure of DNA?
a. to code for proteins
c. to separate the strands
b. to synthesize proteins
d. to connect the base pairs
____
8. In a molecule of double-stranded DNA, the amount of adenine present is always equal to the amount of
a. cytosine.
c. guanine.
b. thymine.
d. uracil.
2
Name: ________________________
____
ID: A
9. Which of these is a nucleotide?
a.
b.
1.
2.
____ 10. A chromosome is best described as a
a. gene that has more than one form.
b.
green cell found in many plants.
c.
d.
3.
4.
c.
strand of DNA containing genetic
information.
reproductive cell found in certain kinds
of bacteria.
d.
____ 11. Which of the following would correctly represent the complementary strand of DNA to the DNA strand
listed below?
a.
c.
b.
d.
____ 12. During replication, the strands of a double-stranded DNA molecule separate from each other when bonds are
broken between their
a. nitrogenous bases.
c. 5-carbon sugar.
b. phosphate groups
d. amino acids.
3
Name: ________________________
ID: A
____ 13. At which point would hydrogen bonding between two nitrogenous bases normally occur?
a.
b.
A
B
c.
d.
C
D
____ 14. Which nucleotide contains a nitrogenous base that pairs with thymine in double-stranded DNA?
a.
b.
1.
2.
c.
d.
3.
4.
____ 15. Select the type of nucleic acid, chosen the list below, that is best described by the statement shown.
“Contains the nitrogenous base thymine.”
a.
b.
Deoxyribonucleic acid
Messenger ribonucleic acid
c.
d.
Ribosomal ribonucleic acid
Transfer ribonucleic acid
____ 16. The symbols shown illustrate components of nucleic acids. Which combination represents a single
nucleotide?
a.
b.
1, 2, 4
2, 3, 4
c.
d.
1, 6, 7
4, 5, 7
____ 17. Which cell activity must occur in order for the normal sequence of events in mitotis and meiosis to take
place?
a. translocation
c. nondisjunction
b. DNA replication
d. RNA replication
____ 18. In a portion of a gene, the nitrogenous base sequence is T-C-G-A-A-T. Which nitrogenous base sequence
would normally be found bonded to this section of the gene?
a.
b.
A-C-G-T-A-A
A-G-C-T-T-A
c.
d.
4
A-C-G-U-U-A
U-G-C-A-A-U