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REVIEW QUESTIONS

12 November, 2015 - 17:37
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  1. What is a likely evolutionary advantage of sexual reproduction over asexual reproduction?
    1. sexual reproduction involves fewer steps
    2. less chance of using up the resources in a given environment
    3. sexual reproduction results in greater variation in the offspring
    4. sexual reproduction is more cost- effective
  2. Which type of life cycle has both a haploid and diploid multicellular stage?
    1. an asexual life cycle
    2. diploid-dominant
    3. haploid-dominant
    4. alternation of generations
  3. Which event leads to a diploid cell in a life cycle?
    1. meiosis
    2. fertilization
    3. alternation of generations
    4. mutation
  4. Meiosis produces 　 daughter cells.
    1. two haploid
    2. two diploid
    3. four haploid
    4. four diploid
  5. At which stage of meiosis are sister chromatids separated from each other?
    1. prophase I
    2. prophase II
    3. anaphase I
    4. anaphase II
  6. The part of meiosis that is similar to mitosis is 　 .
    1. meiosis I
    2. anaphase I
    3. meiosis II
    4. interkinesis
  7. If a muscle cell of a typical organism has 32 chromosomes, how many chromosomes will be in a gamete of that same organism?
    1. 8
    2. 16
    3. 32
    4. 64
  8. The genotype XXY corresponds to:
    1. Klinefelter syndrome
    2. Turner syndrome
    3. Triplo-X
    4. Jacob syndrome
  9. Abnormalities in the number of X chromosomes tend to be milder than the same abnormalities in autosomes because of 　 .
    1. deletions
    2. nonhomologous recombination
    3. synapsis
    4. X inactivation
  10. Aneuploidies are deleterious for the individual because of what phenomenon?
    1. nondisjunction
    2. gene dosage
    3. meiotic errors
    4. X inactivation
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