In females, meiosis II is completed ____
a. before birth
b. at the time of birth
c. when eggs are ovulated each month
d. at puberty
e. only if the egg is fertilized
ANSWER: e
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Meiosis I produces ________, and meiosis II produces _________ cells.
A. two diploid, two haploid B. two diploid, 4 haploid C. two haploid, 4 haploid D. two haploid, two haploid E. two somatic, two gametic
DNA cloning techniques have made it possible to locate ____________________, map them, isolate them, sequence
them, and transfer them between species. Fill in the blank(s) with the appropriate word(s).
Which of the following would you predict would evolve in guppies that are taken from streams in Trinidad with predators and put into streams lacking predators?
A) Guppies would evolve to have females prefer less colorful males. B) Male guppies will become more colorful. C) Male guppies will become less colorful. D) Guppies would evolve to have females avoid more colorful males. E) Male guppies will not change in coloration.
A bacterium possessing a tuft of flagella at one end of its cell is called
a) amphitrichous. b) lophotrichous. c) monotrichous. d) peritrichous.