Sometimes an embryo splits after fertilization into two. This makes identical twins. When the embryo splits, but remains attached to the other, you get conjoined twins.
When the embryo gets fertilized, it sometimes splits into two, making an identical twin.
When twins are formed from one embryo, it is known as monozygotic twinning. This occurs when a single fertilized egg splits into two embryos. As a result, the twins will share the same genetic material, leading to identical or monozygotic twins.
the embryo is killed
Embryo get implanted on the uterine wall.
The Embryo happens to be the lost Heart's Egg of Little Hikaru.
It splits into two.
Random bases attach.
When an atom splits, its called fission Heat comes from fission
When a hen lays a fertilized egg, there is no embryo inside. Embryo's only start to form once they are incubated.
It splits
That's a miscarriage.