A conceptus is formed with one egg and one spermatozoan. If it splits in 2, that happens generally, you've got identical twins. If one amongst those eggs separates once more, you’ll have identical triplets, and so on. All the babies begin with constant factor set: They’re either all boys or all women, and they’ll look alike. Identical multiples happen in 3 or four of each one,000 live births.
