USABO Practice Questions and Verified Answers | Passed | A+

What enzyme does HIV use to convert RNA to DNA? : Reverse Transcriptase The promoter region of a prokaryotic gene is located ______ to the gene and is the binding site for ______. : 5'...RNA polymerase Which of the following is TRUE of prokaryotes? I. Simultaneous transcription and translation II. Presence of intron sequences III. Circular DNA : I and III only 2 Integral transmembrane proteins are proteins imbedded in the cell membrane. Which of the following amino acids would you MOST expect to find in the transmembrane region of such proteins? : Tryptophan When the base composition of DNA from bacterium Mycobacterium tuberculosis was determined, 18% of the bases were found to be adenine. What is the G + C content in M. tuberculosis? : 64% The frequency of individuals affected with an autosomally recessive inherited disorder is 1 in 4. Assuming that the population affected by this disease is in Hardy-Weinberg equilibrium, what is the proportion of carrier individuals in this population? : 50% The velocity of action potential co