A spermatozoon (male gamete) and an oocyte (female gamete) meet and fuse to form a single cell: the embryo. After 8 weeks, the embryo develops into a foetus in the uterus.
A spermatozoon (male gamete) and an oocyte (female gamete) meet and fuse to form a single cell: the embryo. After 8 weeks, the embryo develops into a foetus in the uterus.