Classify the examples as pre‑zygotic or post‑zygotic barriers.

BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)
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Chapter14: Human Inheritance
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Problem 2GP: Human females have two X chromosomes XX; males have one X and one Y chromosome XY. a. With respect...
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Classify the examples as pre‑zygotic or post‑zygotic barriers.

Answer Bank
The breeding season of the Red-legged Frog occurs from November to late April, whereas the breeding season for the Yellow-legged Frog occurs
from late April to June.
Two species of Drosophila have incompatible alleles resulting in inviable hybrids.
Lions and tigers can mate, but their resulting offspring are sterile.
While the Giant Red Sea Urchin and the Purple Red Sea Urchin release their gametes into the same oceans, their respective gametes do not recognize
each other, thus preventing their interbreeding.
Transcribed Image Text:Answer Bank The breeding season of the Red-legged Frog occurs from November to late April, whereas the breeding season for the Yellow-legged Frog occurs from late April to June. Two species of Drosophila have incompatible alleles resulting in inviable hybrids. Lions and tigers can mate, but their resulting offspring are sterile. While the Giant Red Sea Urchin and the Purple Red Sea Urchin release their gametes into the same oceans, their respective gametes do not recognize each other, thus preventing their interbreeding.
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