Which of the following events would best be described as a case of speciation in sympatry?

+1 vote

 

An individual hermaphroditic plant undergoes meiotic failure, producing diploid pollen and ovules; these self-fertilize, germinate, and grow into several fully fertile tetraploid plants.

Speciation cannot take place in sympatry, only in allopatry, where geography poses a barrier to gene flow.

A population of lizards is subdivided by a natural barrier and subsequently diverges to form two species that cannot interbreed.

A new, isolated population of fruit flies is founded by a small group of colonists, who then diverge from the ancestral source population.

 

asked Dec 28, 2012 in Biology by anonymous
    

1 Answer

+1 vote

 

An individual hermaphroditic plant undergoes meiotic failure, producing diploid pollen and ovules; these self-fertilize, germinate, and grow into several fully fertile tetraploid plants.

 

answered Dec 28, 2012 by Ytwsa ~Expert~ (1,092 points)



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