Mature ova are released from the ovary into the oviduct where they may be fertilised by sperm to form a zygote. In humans, fertilisation happens inside the woman’s body. This is a process called ...

It can last anytime between 36 and 42 weeks after fertilization and still be considered a normal timeframe. An egg becomes fertilized when a sperm penetrates it, creating a zygote. For the first ...

Mammalian preimplantation embryonic development is a dynamic process that encompasses a chain of events from fertilization to implantation. During this period, switching of the genetic programme ...

Your little zygote has now officially turned into an embryo. About eight weeks after fertilization (roughly week 10 of pregnancy), the embryo will turn into what’s known as a fetus. From there ...