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.
Soccer Coaching Initiatives Target Improvement in Youth Development Standards. Aug 24, 2015. CHICAGO (Aug. 24, 2015) â In another step towards its commitment to long-term player development, U.S. Soccer is phasing in new standards related to small-sided games and birth-year registration.