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Science Clinic => Biology => Topic started by: j_sun on Jul 11, 2013

Title: Rocky Mountain juniper (Juniperus scopulorum) and one-seeded juniper (J. monospe
Post by: j_sun 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 are applicable?
1.    sympatric species
2.    prezygotic isolation
3.    postzygotic isolation
4.    allopatric species
5.    habitat isolation
6.    reduced hybrid fertility
A) 1 and 2
B) 2 and 4
C) 1, 3, and 6
D) 2, 4, and 5
E) 1, 2, 5, and 6
Title: Re: Rocky Mountain juniper (Juniperus scopulorum) and one-seeded juniper (J. monospe
Post by: coco on Jul 12, 2013
Hey again :D

I'm guessing it's A. It makes sense.
Title: Re: Rocky Mountain juniper (Juniperus scopulorum) and one-seeded juniper (J. monospe
Post by: j_sun on Aug 31, 2013
You're the best, thank you
Title: Re: Rocky Mountain juniper (Juniperus scopulorum) and one-seeded juniper (J. monospe
Post by: joblessjake on Sep 27, 2014
Thanks