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2. The purple sea urchin (Strongylocentrotus purpuratus) and a sympatric species known as the red sea urchin (Strongylocentrotus franciscanus) release their gametes into the Pacific Ocean at the same time, but the sperm cells of each species fail to fertilize the egg cells of the other species due to different membrane proteins. This prevention of interspecific fertilization in sea urchins is: A. a post-zygotic barrier known as F2 hybrid breakdown B. a post-zygotic barrier known as F, hybrid sterility C. a pre-zygotic barrier known as gamete isolation D. a pre-zygotic barrier known as temporal isolation E. a post-zygotic barrier known as F, hybrid inviability

2. The purple sea urchin (Strongylocentrotus purpuratus) and a sympatric species known as the red sea urchin (Strongylocentrotus franciscanus) release their gametes into the Pacific Ocean at the same time, but the sperm cells of each species fail to fertilize the egg cells of the other species due to different membrane proteins. This prevention of interspecific fertilization in sea urchins is: A. a post-zygotic barrier known as F2 hybrid breakdown B. a post-zygotic barrier known as F, hybrid sterility C. a pre-zygotic barrier known as gamete isolation D. a pre-zygotic barrier known as temporal isolation E. a post-zygotic barrier known as F, hybrid inviability

Human Anatomy & Physiology (11th Edition)
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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2. The purple sea urchin (Strongylocentrotus purpuratus) and a sympatric species known as the red sea urchin (Strongylocentrotus franciscanus) release their gametes into the Pacific Ocean at the same time, but the sperm cells of each species fail to fertilize the egg cells of the other species due to different membrane proteins. This prevention of interspecific fertilization in sea urchins is: A. a post-zygotic barrier known as F2 hybrid breakdown B. a post-zygotic barrier known as F, hybrid sterility C. a pre-zygotic barrier known as gamete isolation D. a pre-zygotic barrier known as temporal isolation E. a post-zygotic barrier known as Fi hybrid inviability
Transcribed Image Text:2. The purple sea urchin (Strongylocentrotus purpuratus) and a sympatric species known as the red sea urchin (Strongylocentrotus franciscanus) release their gametes into the Pacific Ocean at the same time, but the sperm cells of each species fail to fertilize the egg cells of the other species due to different membrane proteins. This prevention of interspecific fertilization in sea urchins is: A. a post-zygotic barrier known as F2 hybrid breakdown B. a post-zygotic barrier known as F, hybrid sterility C. a pre-zygotic barrier known as gamete isolation D. a pre-zygotic barrier known as temporal isolation E. a post-zygotic barrier known as Fi hybrid inviability
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