. Former president Ronald Reagan once commented at a press conference that the best way to combat the spread of AIDS in the US was to prohibit everyone from having sexual contact for 5 years
What would be the success of such a program if it were possible to carry out?
A. It would 'cure' the population of HIV/AIDS. Everyone that had it would die off, and no new cases would occur, since sexual contact is the only mode of transmission for this virus.
B. It would be a failure-this 'program' wouldn't eliminate IV drug use or transmission of HIV from mother to child. Sexual transmission isn't the ONLY mode of transmission for this virus.
C. It would be a failure-many HIV positive individuals survive for longer than 5 years, even without treatment (sometimes without even realizing they're positive). Once sexual contact resumed, sexual transmission would also resume.
D. It would be a failure-this 'program' wouldn't eliminate IV drug use or transmission of HIV from mother to child. Sexual transmission isn't the ONLY mode of transmission for this virus, AND many HIV positive individuals survive for longer than 5 years, even without treatment (sometimes without even realizing they're positive). Once sexual contact resumed, sexual transmission would also resume.
D.
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Which statement about the PiZ allele is not true? Consult Figure 15.2 if necessary
A. The PiZ allele is common in populations of European descent. B. One out of 30 Caucasians in the United States is heterozygous for the PiZ allele. C. Individuals homozygous for the PiZ allele have normal lung elasticity. D. Nonsmokers who are homozygous for the PiZ allele have a life-expectancy of 65 years. E. Smokers who are homozygous for the PiZ allele have a life-expectancy of 40 years.
Which of the following genotypes would result in a true-breeding stock?
A. AA or Aa or aa B. Aa, but not AA or aa C. AA, but not Aa or aa D. Aa, but not AA or aa E. AA or aa, but not Aa
During one cycle, the sodium-potassium pump binds and moves:
What will be an ideal response?
The function of chloroplasts is
A) cellular respiration. B) lipid synthesis. C) photosynthesis. D) intracellular digestion.