2. Question #1 DNA and RNA nucleotides differ in their ___. Write in ALL that apply. a) Phosphate groups b) Nitrogenous bases c) Sugars d) Functions

3. Question #2 Which of the following will NOT be a DNA sequence for valine? a) CAT b) GTA c) CAC d) CAG

4. Question #3 Which of the following are NOT complementary? a) AGT and TCA b) GCA and CGU c) TCA and AGU d) GAT and CTU

5. Question #4 Which of the following is true about amino acids? Write in ALL that apply. a) Most come from the food you eat. b) They are held together in a protein by peptide bonds. c) Your body makes them as needed. d) There is no amino acid for the sequence ATC.

6. Question #5 How many tRNAs are needed for the following mRNA sequence: AUG CAC GGA UAA? a) One b) Two c) Three d) Four

7. Question #6 Which of the following is part of a charged tRNA? Write in ALL that apply. a) mG cap b) Amino acid c) Anticodon d) Poly-A tail

8. Question #7 The DNA sequence GAA codes for which amino acid? a) Aspartate b) Glutamate c) Glutamine d) Histidine e) Leucine

9. Question #8 Which of the following mutations results from one or more bases being changed? Write in ALL that apply. a) Nonsense b) Frameshift c) Missense d) Silent

10. Question #9 Where does RNA polymerase attach to DNA? a) Start codon b) Promoter region c) AUG d) Ribosome A site

11. Question #10 Which of the following is true of mutations? Write in ALL that apply. a) They are mistakes in DNA sequences b) They can be removed through RNA processing c) They are called introns d) They result in the formation of incorrect proteins

12. Question #11 Draw the charged tRNA for TCA.

13. Answers 1. B, C, D 2. B 3. D 4. A, B, D 5. C 6. B, C 7. E 8. A, C, D 9. B 10. A, D 11. Anticodon is UCA; Amino acid is Serine