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.
CVTs are our least favorite type of transmission, mainly because their only nod to driver involvement is engine drone under heavy throttle. In spite of the lost love, CVTs are making inroads against manuals and conventional automatics. Toyota, for example, has introduced a new belt-and-pulley transmission as standÂ­ard equipment on three-quarters of its 2014 Corolla range. Slow-laners adore the CVTâs lack of drama. Stick it in D, tap the gas, and trust the flux capacitor under the hood to do whatâs right.