1. Allopolyploidy can quickly create new species due to a. spontaneous mutation within a species b. spontaneous mutation between two species c. spontaneous chromosome duplication w... 1. Allopolyploidy can quickly create new species due to a. spontaneous mutation within a species b. spontaneous mutation between two species c. spontaneous chromosome duplication within a species d. spontaneous chromosome duplication between two species 2. Darwin based his theory of evolution by natural selection on his observations of the a. genotypes of individuals. b. phenotypes of individuals. c. genotypes of populations. d. phenotypes of populations 3. When a species colonizes an island, the resulting population usually has less genetic variation than that of the mainland population. The most likely reason for this difference is a. mutation. b. gene flow. c. genetic drift. d. nonrandom mating. e. natural selection. 4. If the barrier is removed from two populations that were formed by allopatric speciation, what characteristic would allow one to determine if the two populations had become separate species? a. Different morphologies b. Habitat specialization c. Inability to interbreed d. Competition for resources Read more