CA #3 Adv. Bio

1. In Figure 1, what do the lines between the A-T and G-C pairs represent?

• Ionic bonds

• hydrogen bonds

• covalent bonds

• van der Waals forces

1. Figure 1 is a simple representation of a DNA molecule. What does the circles portion of the molecule represent?

• a tRNA subunit

• an amino acid

• a nucleotide

• a mRNA subunit

3. If the DNA molecule in figure 1 were transcribed, how many codons would the resulting mRNA molecule contain?

• 1

• 2

• 3

• 4

How many total nucleotides are in Figure 1?

• 10

• 12

• 14

• 16

5. Which portion of the DNA molecule varies from nucleotide to nucleotide and thus serves as the portion of the nucleotide which codes for amino acid sequences?

• phosphate group
• ribose sugar
• nitrogenous bases
• hydrogen bonds

7. What mRNA sequence would be transcribed from the normal Hemoglobin DNA sequence found in Figure 2?

• A. TAC CAC GTG GAC TGA GGA CAC CTC TTC AGA CGG CAA TGA

• B. UAC CAC GUG GAC UGA GGA CUC CUC UUC AGA CGG CAA UGA

• C. UAC CAC GUG GAC UGA GGA CAC CUC UUC AGA CGG CAA UGA

• D. TAC CAC GTC GAC TGA GGA CTC CUC TTC AGA CGG CAA TGA

What process is occuring in figure 3?

• transcription

• translation

• replication

• mitosis

Which numbered structure in figure 3 represents a codon?

• 2

• 3

• 4

• 5

What is #1 in Figure 3?

• mRNA

• tRNA

• rRNA

• cRNA

Which numbered structure in figure 3 represents an anticodon?

• 1

• 2

• 3

• 4