Mitosis does not require that homologous chromosomes align with one another.
a. true
b. false
a. true
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The disease responsible for the death of approximately ΒΌ the population of Europe from 1346 to 1350 was
A. typhus. B. pneumonia. C. influenza. D. plague.
Nondisjunction refers to
a. failure of homologous pairs to separate during meiosis. b. improper pairing of nonhomologous chromosomes during meiosis. c. failure of sister chromatids to pair during mitosis. d. failure of homologous pairs or sister chromatids to separate during meiosis. e. failure of homologous pairs to separate during mitosis.
What happens if homeostasis is NOT maintained?
A) Organisms stop using negative feedback loops. B) Cells lose the ability to carry out normal functions. C) Organisms function better. D) Cellular metabolism is unchanged. E) Cells begin dividing uncontrollably.
Bacteria that divide in multiple planes and form grapelike clusters are called
a) streptococci. b) staphylococci. c) coccobacilli. d) vibrios.