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.
If you are shopping for a new or used car and see that a car has a continuously variable transmission (CVT), is that a plus or a minus in your mind? A CVT is an automatic transmission that instead of using fixed gears uses two pulleys connected by a steel band, with the diameter of one of the pulleys continually adjusting as needed to provide an optimal gear âratioâ to transfer power to the carâs tires.