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.
In charge of the national team since 2011, Klinsmann had a record of 55-27-16 and led the U.S. to the Round of 16 in the 2014 World Cup. Former national team coach Bruce Arena, 65, is expected to be named as Klinsmann's replacement as early as Tuesday, three people with knowledge of the decision told USA TODAY Sports.