2003 USABO Open Exam QUESTIONS AND VERIFIED ANSWERS

2003 USABO Open Exam
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What enzyme does HIV C
use to convert RNA to
DNA?
[ ] A. DNA gyrase
[ ] B. RNA polymerase
[ ] C. Reverse transcriptase
[ ] D. DNA helicase

Which of the following is B
TRUE of prokaryotes?
I. Simultaneous
transcription and
translation
II. Presence of intron
sequences
III. Circular DNA


[ ] A. I and II only
[ ] B. I and III only
[ ] C. II and III only
[ ] D. I, II, and III

, The promoter region of a D
prokaryotic gene is
located ______ to the gene
and is the binding site for
______.
[ ] A. 3'...DNA polymerase
[ ] B. 3'...RNA polymerase
[ ] C. 5'...DNA polymerase
[ ] D. 5'...RNA polymerase

. Integral transmembrane C Tryptophan
proteins are proteins (it is non polar and does not have a charge)
imbedded in the cell
membrane. Which of the
following amino acids
would you MOST expect
to find in the
transmembrane region of
such proteins?
[ ] A. Lysine
[ ] B. Serine
[ ] C. Tryptophan
[ ] D. Arginine