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.
MG-Rover used an identical ZF CVT transmission on its Rover 45 and MG ZS models. GM introduced its version of CVT known as VTi in 2002. It was used in the Saturn Vue and Saturn Ion models. In 2002 the Suzuki Burgman 650 was the largest-displacement scooter in the world, and first two-wheel vehicle to feature an electrically controlled CVT.