Until recently, the only way to make eggs or sperm was the old-fashioned way: in the ovaries and testes. In the not-too-distant future, it may be.
Pregnancy happens when an egg and sperm successfully meet through intercourse or in vitro fertilization. But let's get down to the.
A fertilized egg is potentially immortal: this fusion of egg and sperm gives rise not only to a new individual, but also (theoretically at least) to an.