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 States falls to Costa Rica in World Cup qualifier. Costa Rica demolished the U.S. 4-0 in a World Cup qualifier on Tuesday, throwing the continued tenure of U.S. coach Jurgen Klinsmann into question. SAN JOSE, Costa Rica â Jurgen Klinsmann insisted Tuesdayâs 4-0 drubbing in Costa Rica was the lowest point of his career as United States head coach.