How fertilization occurs?

Answer:

One sperm cell must find the egg cell (oocyte) and penetrate the cell membrane. Only the head gets in. It (consisting almost entirely of DNA) is drawn to the nucleus of the egg cell where the chromosomes match and mix.

First answer by Johnellishartford. Last edit by Johnellishartford. Contributor trust: 702 [recommend contributor recommended]. Question popularity: 3 [recommend question].