Motorcycle Brake Pads: Sintered Vs Organic. We all love twisting the throttle to go down the road, but being able to stop your motorcycle is nice too. Brake pads can be one of those things that you keep neglecting over time and think to yourself that youâll get to it later.
The mature sperm cell is slender; in the middle part, the mitochondria are thick and ring-shaped. The DNA in the nucleus is maximally condensed.
The National Center for Biotechnology explains that sperm cells have two parts: the head and the tail. The head contains tightly packed DNA, and the tail is a flagellum that propels the sperm to the egg. How Stuff Works elaborates that these sperm cells are delivered through semen, which includes fluid from the male vesicles and the prostate gland in addition to the sperm.