When two populations come into contact after a long period of divergence in allopatry, which of the following is the least likely possibility?

+2 votes

 

The two populations meet and hybrid offspring from the two populations have reduced fitness.

The two populations meet and there have been no genetic changes between the populations. Each population is identical to the population before the separation.

The two populations meet and mating does not produce any offspring.

The two populations meet and form a hybrid zone where both species interbreed and form viable offspring.

 

asked Dec 28, 2012 in Biology by anonymous
    

1 Answer

+1 vote

 

The two populations meet and there have been no genetic changes between the populations. Each population is identical to the population before the separation.

 

answered Dec 28, 2012 by Luffy ~Expert~ (977 points)

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