Mutations may occur in a normal cell as a result of cell division and the effects of environmental and lifestyle factors, such as smoking o r sunlight. Once the first cancer-causing, or driver, mutations occur, defects in cellular processes âfor example, in DNA repairâmay cause more mutations to occur.
U.S. men's national soccer team coach Jurgen Klinsmann out. U.S. men's national team coach Jurgen Klinsmann has been under increased pressure.
United Soccer Coaches has developed the Foundations of Coaching online course as the perfect introduction to coaching youth soccer for the first time, and as a helpful refresher for those coaches coming back to the youth game.