Which Is A Postzygotic Reproductive Barrier?

Which Is A Postzygotic Reproductive Barrier? Postzygotic barriers include the creation of hybrid individuals that do not survive past the embryonic stages ( hybrid inviability ) or the creation of a hybrid that is sterile and unable to produce offspring ( hybrid sterility ). What is an example of Postzygotic reproductive barrier? Postzygotic barriers: Postzygotic