Notes from NEET topper
3. Reproductive Isolation:
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Definition: Reproductive isolation is a mechanism that prevents members of different species from mating with each other or ensures that any offspring they produce are sterile.
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Types of Reproductive Isolation:
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Prezygotic Isolation: Prevents the formation of a zygote (fertilized egg) and includes mechanisms like temporal, behavioral, and mechanical isolation.
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Postzygotic Isolation: Occurs after fertilization and includes mechanisms like hybrid inviability and hybrid sterility.
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Significance: Reproductive isolation is a key factor in speciation as it maintains the genetic integrity of species and prevents hybridization between different species.
