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.
DNA is then folded into a toroid, an O-shaped structure, although the mechanism is not known. A sperm cell can contain up to 50,000 toroid-shaped structures in its nucleus with each toroid containing about 50 kilobases.