Rocky Mountain juniper (Juniperus scopulorum) and one-seeded juniper (J. monosperma) have overlapping ranges. Pollen grains (which contain sperm cells) from one species are unable to germinate and make pollen tubes on female ovules (which contain egg cells) of the other species. These two juniper species are kept separate by ________.
A) habitat isolation
B) temporal isolation
C) gametic isolation
D) behavioural isolation

Question

Quizplus · Accepted Answer

Gametic isolation refers to the prevention of fertilization due to incompatible gametes, which is the case with these two juniper species. The other options, such as habitat isolation, temporal isolation, and behavioral isolation, do not apply in this scenario.

Rocky Mountain Juniper (Juniperus Scopulorum) and One-Seeded Juniper (J