Answer:
To summarise, a parent cell divides by mitosis (doubling the DNA then splitting) and then divides again to have 4 daughter cells with all different DNA in and all with only half the amount of DNA as a normal body cell. This stage is meiosis. They make sperams and eggs which fuse together in fertilisation and once fertilised the cell will divide by mitosis to create embryos and further to grow into a fetus.