Question

Which of the following is a premating mechanism of isolation?

a) Zygote mortality b) Hybrid sterility

c) Gamete mortality d) Habitat isolation​

Answer 1

Gametic isolation- During sexual reproduction, the female egg is fused with the male sperm and together they create a zygote. If the sperm and egg are not compatible, this fertilization cannot occur and the zygote will not form. ... Other times, the sperm just cannot penetrate the egg because of its own chemical make up.