Question:medium
What is a post-zygotic mechanism?
What is a post-zygotic mechanism?
Show Hint
This mechanism prevents hybrid species from reproducing.
Updated On: Jan 17, 2026
- Hybrid inviability
- Hybrid sterility
- Gametic isolation
- Behavioral isolation
Show Solution
The Correct Option is B
Solution and Explanation
Post-zygotic mechanisms can lead to reproductive failure in hybrid offspring. Hybrid sterility, exemplified by mules (horse-donkey hybrids), arises when viable hybrids are unable to reproduce because of chromosomal incompatibilities.
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