The MMR vaccine is used to protect against
A. mononucleosis, mange, rubeola.
B. measles, mange, rubeola.
C. mononucleosis, mumps, rubella.
D. measles, mumps, rubella.
D.
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Genetic drift is a process that has a greater effect on populations that
(a) are large. (b) are small. (c) are not affected by mutation. (d) do not go through bottlenecks.
What type of thinking is required?
What will be an ideal response?
Retroviruses are characterized by
a. an RNA core. b. integrating DNA into the host’s chromosome. c. the enzyme reverse transcriptase. d. having one strain that causes AIDS. e. all of these
For most reptiles, fertilization is __________ and they are __________
a. external; ovoviviparous b. external; oviparous c. internal; ovoviviparous d. internal; oviparous e. external; viviparous