Gene flow is defined as the
a. production of new alleles.
b. production of new genetic material.
c. chance loss of alleles in a population.
d. exchange of genes between populations.
e. differential reproductive success of individuals.
D
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Two people (BOTH heterozygotes) are able to taste a chemical substance called PTC. The ability to taste PTC is caused by a dominant allele (T). The inability to taste PTC is caused by a recessive allele (t). What proportion of their children would be expected NOT to be able to taste PTC?
a. 3/4 b. All c. 1/4 d. 2/3
What new tools become more common in the tool kits of the Archaic peoples as the glaciers retreated?
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Bergmann's rule concerns the shape of the body, especially the appendages
a. True b. False Indicate whether the statement is true or false
Social acceptance of an innovation involves three steps: identification, analysis, and substitution
Indicate whether the statement is true or false.