Chem 336 - Spring 2000
Organic Chemistry III
Dr. Carl C. Wamser

Chapter 28 Pre-Quiz

1. The three components phosphate, D-ribose, and guanine could be assembled into

a) thymidine

b) guanidine

c) guanosine

d) GMP

e) GTP

2. A molecule of AZT contains how many nitrogen atoms?

a) 2

b) 3

c) 4

d) 5

e) more than 5

3. In RNA, the base-pairing expected would be

a) A-T and G-C

b) A-G and T-C

c) A-U and G-T

d) A-C and G-U

e) A-U and G-C

4. For a DNA strand that reads (from 5' to 3') ATTGACT, the complementary strand would read (also from 5' to 3')

a) TCAGTTA

b) AGTCAAT

c) TAACTGA

d) UAACUGA

e) AGUCAAU

5. A genetic mutation that changed a mRNA codon from GAA to GUA would lead to the replacement of

a) Pro for Leu

b) Arg for Ile

c) Gly for Asp

d) Leu for His

e) Val for Glu