22. Evolution of Populations
Genetic Variation
Multiple Choice
Multiple ChoiceWhich of the following is the best example of gene flow?
A
A small population of humans colonizes a newly formed island.
B
Genes are shuffled by the crossing over of chromosomes during meiosis.
C
An earthquake results in the formation of a canyon, splitting a population of toads apart.
D
A fire drastically reduces the size of a white-tailed deer population. The remaining individuals spread out throughout the remaining forest.
E
Wind blows pollen from one population of plants to another and cross-fertilization occurs.
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