Quiz 12-1
Name_________________________________
_____ 1. In 1928, the experiments of Griffith demonstrated transformation of
a. harmless bacteria into disease-causing bacteria.
b. disease-causing bacteria into harmless bacteria.
c. heat-killed S bacteria into R bacteria.
d. S bacteria into heat-killed R bacteria.
_____ 2. In 1952, Hershey and Chase used a bacteriophage to determine that
genetic material is made of which of the following?
a. protein
c. DNA
b. RNA
d. 35S
_____ 3. Avery’s experiments showed that
a. DNA is responsible for transformation.
b. proteins are responsible for transformation.
c. bacteriophages are responsible for transformation.
d. infectious bacteria are responsible for transformation.
_____ 4. Each nucleotide in a DNA molecule consists of a
a. sulfur group, a five-carbon sugar molecule, and a nitrogen base.
b. phosphate group, lipid molecule, and a nitrogen base.
c. phosphate group, a five-carbon sugar molecule, and an oxygen base.
d. phosphate group, a five-carbon sugar molecule, and a nitrogenous
base.
_____ 5. In 1953, Watson and Crick built a model of DNA with the
configuration of a
a. single helix.
b. double helix.
c. triple helix.
d. circle.
6. What four letters represent the four bases of DNA?
7. What would be the complimentary sequence that would pair with the following
single strand of DNA. AGTTG
8-10. A sample Molecule of DNA has exactly 100 base pairs (200 nucleotides).
It was found to contain 30 guanines.
How many Adenines are in this molecule?
How many Thymines are in this molecule?
How many Cytosines are in this molecule?