Postzygotic Reproductive Isolation Prevents

Question

Postzygotic reproductive isolation prevents
A) formation of gametes by one of the parents.
B) male gametes from joining with female gametes.
C) fertilization.
D) genetic exchange between populations by selecting against hybrid offspring.
E) All of the answer choices are correct.

Accepted Answer

Postzygotic reproductive isolation is a type of reproductive isolation that occurs after the formation of a zygote (fertilized egg). This is usually caused by genetic incompatibilities between individuals of different populations, which prevent the hybrid offspring from developing properly. This can lead to reduced viability or fertility of the hybrid, effectively preventing genetic exchange between populations. Therefore, the correct answer is D, as postzygotic reproductive isolation prevents genetic exchange between populations by selecting against hybrid offspring.