Mutation is a change in DNA, the hereditary material of life. An organism's DNA affects how it looks, how it behaves, and its physiology  all aspects of its life. So a change in an organism's DNA can cause changes in all aspects of its life.
continuously variable transmission (CVT)=An automatic transmission that can change seamlessly through an infinite number of effective gear ratios between maximum and minimum values. Automatic transmission= Automatically change gear ratios as the vehicle moves, freeing the driver from having to shift gears manually.
A continuously variable transmission (CVT) seeks to overcome this by offering an infinite number of gear ratios between a transmissionâs upper and lower ratio limit. Most CVTs feature two pulleys connected via a V-shaped belt: one pulley is driven by the engine, and the other is connected to the wheels.