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Author Question: Rocky Mountain juniper (Juniperus scopulorum) and one-seeded juniper (J. monospe (Read 2032 times)

j_sun

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on: Jul 11, 2013
Rocky Mountain juniper (Juniperus scopulorum) and one-seeded juniper (J. monosperma) have overlapping ranges. If 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, then which of these terms is applicable?
A) behavioral isolation
B) mechanical isolation
C) hybrid breakdown
D) reduced hybrid viability


coco

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Reply #1 on: Jul 12, 2013
Hey again :D

I'm guessing it's B. It makes sense.


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j_sun

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Reply #2 on: Aug 31, 2013
You're the best, thank you


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