1
Fertilisation: Sperm + Egg = Zygote
2
Early division: Zygote divides to form an early-stage embryo
3
Splitting: Embryo is manually split into individual cells
4
Development: The embryos develop seperately
5
Implantation: Embryos are implanted into surrogate mother
6
Birth: The offspring are genetically identical to each other, but not to the parent