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.
Karch Kiraly. U.S. Womenâs National Volleyball Team Head Coach. Karch Kiraly, who has served as head coach of the U.S. Womenâs National Volleyball Team since taking over the squad in September 2012, has agreed to a contract renewal to lead the program through to the 2020 Olympic Games as announced on May 5, 2016.