What is the difference between test-tube babies and clones?
So-called “test-tube” babies come from in vitro fertilization. The process is used to help people with fertility problems have biological children. As in cloning, eggs are taken from a woman’s ovaries. They keep their genetic material intact. These eggs are mixed with sperm from the biological father in the laboratory — in the “test tube.” Once fertilized, the eggs grow into embryos and are placed into a woman’s womb — and must implant into the uterus to survive. The resulting embryos have one set of genes from the woman who donated the egg, and another set from the man who donated the sperm. They are not clones.
