The stage of prophase I in which mammalian oogenesis can arrest for years is
A) leptotene.
B) zygotene.
C) pachytene.
D) diplotene.
E) diakinesis.
Answer: D
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Which of the following statements is false regarding RSV?
A. RSV infects infants aged 6 months and younger; it is unlikely that a 4-year-old would develop a respiratory disease as a result of this virus. B. While RSV is most prevalent in infants 6 months of age and younger, the highest mortality rate is in those children with underlying risk factors such as prematurity. C. Infants aged 6 months and younger are the most susceptible to infection by RSV; however, adults and older children can also become infected with this virus. D. Although RSV is most prevalent in infants aged 6 months and younger, usually by age 2 most children have been exposed to this virus.
Which of the following is/are true of capsules?
A. They retain water and help prevent desiccation of the bacteria. B. They prevent entry of many bacterial viruses. C. They help bacteria escape phagocytosis by host cells. D. All of the choices are correct.
What is the function of the animal developmental genes studied by King and researchers?
A. The developmental genes encode proteins that play a key role in guiding body plan development. B. The developmental genes encode proteins that speed up mutation rates in DNA of eumetazoans. C. The developmental genes encode proteins that determine differences in the epidermis of different animal groups. D. The developmental genes play a role in growth rate and molting. E. None of the answer choices is correct.
An unscrupulous dog breeder has been selecting for dogs that have very large litters, with the goal of maximizing profits. Why might this strategy be counterproductive?
A. It will cost too much money to feed all those puppies. B. Litter size is not influenced by genetics. C. The puppies from large litters are likely to be malnourished, and the mother will have few resources to devote to future litters. D. Intrauterine cannibalism will reduce the number of puppies. Clarify question: What is the key concept addressed by the question? What type of thinking is required? Gather Content: What do you already know about the risks versus benefits of producing a large little of puppies? What other information is related to the question? Choose Answer: Given what you now know, what information is most likely to produce the correct answer? Reflection on Process: Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?