Crossing a Zebra with a Horse Produces Sterile Offspring

Question

Crossing a zebra with a horse produces sterile offspring. This is an example of
A) temporal isolation.
B) hybrid inviability.
C) hybrid infertility.
D) hybrid vigor.
E) gametic incompatibility.

Accepted Answer

Hybrid infertility refers to the condition where offspring produced by the crossing of two different species are incapable of reproducing. This is the case with the offspring of a zebra and a horse; while they can live, they are sterile and cannot produce their own offspring.