Suppose That the Natural Ranges of Horses and Donkeys Were

question 54

Multiple Choice

Suppose that the natural ranges of horses and donkeys were to overlap. Which of the following statements best describes what would likely happen to the populations over time?

• A) The hybrid offspring (mules) would become widespread and mate with members of both populations.
• B) The hybrid offspring would mate with other hybrid offspring to produce viable offspring.
• C) The hybrid offspring are less reproductively fit and reinforcement could strengthen postzygotic barriers.
• D) Eventually all members of both populations would be hybrids.
• E) The hybrid offspring are less reproductively fit and reinforcement could strengthen prezygotic barriers.