Question

You are studying speciation in crickets. You find that males and females from different populations will mate, but few eggs get fertilized. This is an example of what type of reproductive isolating barrier?

Answer 1

The example described is an instance of a gametic barrier, which occurs when differences in gamete cells prevent fertilization from taking place.

Step-by-step explanation:

The reproductive isolating barrier described in the question is a gametic barrier. This occurs when differences in the gamete cells of males and females from different populations prevent fertilization from taking place. In the case of crickets, although males and females from different populations can mate, the few eggs that do get fertilized suggest that their gametes are not compatible, resulting in low successful reproduction.