Zygote is the diploid cell that results from the fertilization between an egg and a sperm. Etymology. Came from the Greek word âgametesâ meaning âhusbandâ and âgameteâ meaning âwife.â. Came from the Greek word âzygotosâ meaning âjoined or yoked or to yoke.
This is not causation, but facilitation after the fact. Stating that estrogen causes breast cancer is like saying fertilizer causes weeds. In a garden even weeds need some soil nutrients, and if these are completely removed, the weeds can't grow...but neither can the desired plants.
Being overweight or obese. Being overweight or obese after menopause increases breast cancer risk. Before menopause your ovaries make most of your estrogen, and fat tissue makes only a small amount. After menopause (when the ovaries stop making estrogen), most of a womanâs estrogen comes from fat tissue.