To increase their muscle mass and strength. The main anabolic steroid hormone produced by your body is testosterone. Testosterone has two main effects on your body: Anabolic effects promote muscle building.
1. T-PA is a medicine that is used to bust a clot. It's the break of a clot for a stroke victim.
2. The mode of action for an ischemic stroke is that when a blood clot blocks blood flow to part of the brain. Ischemic means that there's a blockage causing no oxygen to that part of the area thereby causing necrosis to the tissue.
It would be your third option. because if you look at the reproductive system both the sperm and the egg carry different amounts of genetic information.