which is what’s formed after a sperm and egg have a little rendezvous. Here’s what happens. A zygote is a fertilized egg.[1]#1 It’s created when sperm meets an egg in one of the fallopian tubes.

The mature egg can then be fertilized by a sperm cell, which creates a zygote — a fertilized egg cell. After fertilization, the zygote needs to successfully implant into the uterine lining ...

Mono-mono twins are an incredibly rare type of identical twins who share both a placenta and an amniotic sac. While this makes for a high-risk pregnancy, advances in monitoring and treatment have ...

We're made up of around a hundred trillion cells, all coming from just one single fertilised egg. Within hours of fertilisation, this new cell, called a zygote, divided into two identical cells.