Standard: Describe the chemical structure of DNA and its
relationship to chromosomes. Explain the role of DNA in
protein synthesis. (H.1L.2)
Section A: Knowledge & Understanding
1. Figure 12–1 shows the structure of a(an)
a. DNA molecule.
c. RNA molecule.
b. amino acid.
d. protein.
2. How many bases are needed to specify two amino acids?
a. 3
c. 9
b. 6
d. 12
3. Genes contain instructions for making
a. purines.
b. nucleosomes.
c. proteins.
d. pyrimidines.
4. The shape of DNA is a
a. double helix.
b. single strand.
c. ladder.
d. sphere.
5. The order of bases in DNA determines the order of what in proteins?
a. amino acids
c. genes
b. nucleotides
d. RNA
Section B: Application & Analysis
6. The DNA strand A-A-C-T-T-G corresponds to which RNA strand?
a. C-C-A-U-U-T
c. T-T-G-A-A-C
b. G-G-A-U-C-A
d. U-U-G-A-A-C
7. Genetic information usually flows in one specific direction. Which of the following best
represents this flow?
a. Protein to RNA to DNA
c. RNA to Protein to DNA
Curriculum, Instruction, and Assessment
June 11, 2010
b. DNA to Protein to RNA
d. DNA to RNA to Protein
8. Which of the following shows the organization of DNA from smallest to largest?
a) chromosome – gene – nitrogen base – nucleotide
b) nitrogen base – nucleotide -- gene – chromosome
c) gene -- nitrogen base – chromosome – nucleotide
d) nucleotide – gene – chromosome – nitrogen base
9. Draw a picture of a strand of DNA and label the bases.
Section C: Synthesis & Evaluation
10. The diagram shows how a section of protein containing the amino acid sequence QYWQ is
formed. What is the nucleotide sequence of the mRNA segment shown?
a. UCGGAUACUACU
c. ACUUCGGAUACU
b. CCACCACCACCA
d. CAGUAUUGGCAA
Curriculum, Instruction, and Assessment
June 11, 2010