Question
Speciation by allopolyploidya. takes a long time.b. $\quad$ is common in birds.c. $\quad$ leads to reduced numbers of chromosomes.d. occurs after hybridization between two species.
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This process involves the fusion of a normal gamete from one species with a polyploid gamete from another species. Show more…
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The splitting of one species to form two or more species most commonly occurs a. by sympatric speciation. b. by genetic drift. c. by allopatric speciation. d. suddenly.
Sympatric speciation (a) is most common in animals (b) does not require geographic isolation (c) accounts for the evolution of the Hawaiian goose (nene) (d) involves the accumulation of gradual genetic changes (e) usually takes millions of years
Allopatric speciation a. $\quad$ is less common than sympatric speciation. b. involves geographic isolation of some kind. c. is the only kind of speciation that occurs in plants. d. requires polyploidy.
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