For many species, hybridization results in sterile offspring, a process known as reinforcement of isolation. An alternate way of viewing the process of reinforcement is:
A)selection for hybrid individuals.
B)selection against individuals that hybridize.
C)behavioral isolation.
D)ecological isolation.

Question

Quizplus · Accepted Answer

Reinforcement results in selection against individuals that hybridize because it promotes the maintenance of species boundaries and reduces the likelihood of further hybridization. This is because the production of sterile offspring is a waste of time and energy for the individuals involved, and the reinforcement process selects for traits that prevent hybridization and increase reproductive isolation. Therefore, reinforcement reinforces the pre-existing barriers to gene flow between species.

For Many Species, Hybridization Results in Sterile Offspring, a Process