lisääntymismateriaali
Lisääntymismateriaali refers to the biological material used for reproduction. In humans and other sexually reproducing organisms, this typically includes gametes, which are sperm and egg cells. Sperm are the male gametes, produced in the testes, and eggs are the female gametes, produced in the ovaries. Fertilization occurs when a sperm fuses with an egg, creating a zygote, which then develops into an embryo.
Beyond human reproduction, the term can also encompass material used in artificial or assisted reproductive technologies.