HIV can be transmitted by
a. unprotected sex.
b. sharing needles.
c. mother to infant during pregnancy.
d. mother to infant during breast feeding.
e. all of these
E
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There are two different alleles for the number of fingers on the hands: five-finger allele and six-finger allele. When both the five-finger allele and the six-finger allele are present in the same individual, the individual has six fingers on each hand. Which allele is dominant?
A. 6 fingers B. 7 fingers C. 1 finger D. 5 fingers E. 11 fingers
The respiratory system's role in respiration ends with which structure(s)?
a. the bronchioles b. the alveoli c. the bronchi d. the trachea e. the glottis
Oxygen is toxic to
A) obligate anaerobes. B) obligate aerobes. C) cancer cells. D) facultative organisms. E) All of the above.
The enzyme that HIV uses to convert its RNA into DNA is
A. reverse transcriptase. B. DNA polymerase. C. RNA polymerase. D. RNA integrase. E. translase.