Define fertilization. Explain the steps involved in fertilization.

Explanation

The process of fusion of haploid male gamete (sperm) and haploid female gamete (ovum) to form a diploid zygote is known as fertilization. Mechanism of fertilization. Apporach of gametes/Approximation/Trappings. Attraction of gametes by chemotaxis. Fertilization by ovum and antifertilization. Aerosomal reaction/Penetration. Release of spewrmlysins by acrosome. Formation of acrosomal filament. Filament pierces egg surface. Digestion of egg membrane lysins. Entry of sperm. Formation of fertiliazation cone. Activation of the egg / Cortical changes. Cortical granules rupture and release their contents into periviteliae space. Arrange on the inner surface of vatelline membrane to form fertilization membrane. Amphimixis-penetration path-copulation path fusion of male and female pronuclei of the gametes to form synkaryon-zygote-cleavage path.