The bottleneck effect is thought to be responsible for the loss of genetic variability in certain populations.
Answer the following statement true (T) or false (F)
True
It is true that the bottleneck effect is thought to be responsible for the loss of genetic variability in certain populations.
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Which of these statements about human evolution is correct?
A) The ancestors of Homo sapiens were chimpanzees. B) Human evolution has proceeded in an orderly fashion from an ancestral anthropoid to Homo sapiens. C) The evolution of upright posture and enlarged brain occurred simultaneously. D) Different species of the genus Homo have coexisted at various times throughout hominin evolution.
A (missense/nonsense/silent) mutation of a gene usually produces a nonfunctional polypeptide.
Fill in the blank(s) with the appropriate word(s).
The seriousness of Coccidioides infection can be attributed to the formation and rupture of spherules.
Answer the following statement true (T) or false (F)
Bioremediation ________ by introducing pollutant-consuming microorganisms or specific nutrients that help microorganisms degrade pollutants
A) accelerates the natural cleanup process B) exploits genetic exchange mechanisms C) invokes microbial evolution D) uses chemotaxis of biodegrading microorganisms