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tigry1 [53]
3 years ago
5

Explain the difference between prezygotic isolating mechanisms and postzygotic isolating mechanisms.

Biology
1 answer:
anastassius [24]3 years ago
4 0
<h3><u>Answer and Explanation;</u></h3>
  • Prezygotic isolation is a type of reproductive isolation that occurs before the formation of a zygote can take place. In most cases mating does not even occur. Forms of prezygotic isolation include spatial, behavioral, mechanical and temporal isolation.
  • Postzygotic isolation on the other hand occurs after members of two different species have mated and produced a zygote. Forms of postzygotic isolation includes; hybrid sterility, hybrid inviability and hybrid breakdown.
  • Therefore; Prezygotic isolation prevents the fertilization of eggs while postzygotic isolation prevents the formation of fertile offspring.
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