Citation:
Gametes are mature sexual reproductive cells that come together during fertilization to produce offspring. In humans, these are sperm and egg cells.
The cell formed by the union of two gametes; basically it's what forms after an egg is fertilized by sperm.
The action or process of fertilizing an egg involving fusion of male and female gametes to form a zygote.
The production of new living organisms by combining genetic information from two individuals.