Which circumstance is most likely to lead to speciation in only a couple of generations?
A) Polyploidy
B) Allopatric speciation
C) Reinforcement
D) Mechanical isolation
E) Gametic isolation

Question

Quizplus · Accepted Answer

Polyploidy can lead to speciation in only a couple of generations because it results in an immediate reproductive barrier between the new polyploid organism and its ancestral population. This can happen through either autopolyploidy (doubling of chromosomes within a single species) or allopolyploidy (fusion of chromosomes from two different species). In both cases, the resulting polyploid offspring are often sterile or have reduced fertility, creating a barrier to interbreeding with the original population and promoting speciation.

Which Circumstance Is Most Likely to Lead to Speciation in Only