There’s a whole process that you probably learned about (and possibly forgot) in your high school biology class. Central to this all is a zygote, which is what’s formed after a sperm and egg ...

Find out everything you've always wanted to know about identical twins – from how they form to what makes them unique.

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 ...

These two haploid cells produce a diploid zygote. Hormonal control of reproduction ... in in the control of reproduction in humans The biology of controlling fertility Fertility is the ability ...