Human herpesvirus 3 (HHV-3)
A. causes chickenpox and shingles.
B. becomes latent in dorsal root ganglia that serve specific dermatomes.
C. has humans as its reservoir.
D. uses the respiratory epithelium as its portal of entry.
E. All of the choices are correct.
Answer: E
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If a pregnancy has a 1/4 chance of producing a child with a genetic disorder, what are the odds that the next child will
also be born with the same disorder? a. 1/4 b. 1/8 c. 1/12 d. 1/16 e. 1/1
Apes and monkeys differ in two noticeable characteristics. These characteristics are that apes have
A. opposable thumbs and monkeys do not, and monkeys have larger brain capacity than apes do. B. larger brains than monkeys do, and monkeys have tails and apes do not. C. opposable thumbs and monkeys do not, and apes have tails and monkeys do not. D. binocular vision and monkeys do not, and apes have tails and monkeys do not. E. opposable thumbs and monkeys do not, and apes have binocular vision and monkeys do not.
Which of the following is not an advantage of a body cavity?
A) It allows for the storage of eggs or offspring. B) It provides for movement. C) It provides a safe place for an expandable digestive tract. D) It allows flexibility and safe storage of organs.
The inactivation of one X chromosome is established by the directed spreading of heterochromatin. The silent state of this chromosome is _______________ in the subsequent cell divisions
(a) completed (b) switched (c) erased (d) maintained