1. Fertilization results in the formation of a zygote.
2. Characteristics of parents are transferred to offspring through fertilization.
3. The diploid number of organisms is established.
4. Ovarian protein synthesis and metabolism rate increases.
5. New arrangements of genes occur.
6. The sex of the fetus is determined.
7. Ensures continuity of lineage protection.
8. Variations in organisms are created.
9. Evolution occurs in the living world.