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

Biology & Microbiology

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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

Biology & Microbiology

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

Biology & Microbiology

Oxygen is toxic to

A) obligate anaerobes. B) obligate aerobes. C) cancer cells. D) facultative organisms. E) All of the above.

Biology & Microbiology

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.

Biology & Microbiology