Plague is a quarantinable disease.
a. true
b. false
a. true
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At one of Paine’s study sites, the dominant organisms in the tidal pools were mussels,
barnacles, whelks, and a species of starfish know as Pisaster ochraceus. These organisms together are a(n) __________.
a. population b. community c. ecosystem d. niche
How many rounds of cell division occur in mitosis?
a. 0 b. 1 c. 2 d.3
Telomeres are short DNA sequences ____
a. that code for genetic traits
b. that signal transcription to begin c. located in the middle of a chromosome d. located at each end of a chromosome e. repeated along the backbone of a DNA molecule
In Figure 17-1, the purpose of growing the donor cells in nutrient-limited media is:
a. to have small cells that would be easier to manipulate.
b. to replicate a normal environment.
c. to force the donor cell nucleus into the G0 cell stage.
d. to induce favorable mutations.
e. to initiate apoptosis.