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.
COLUMBUS, OHIO -- John Tortorella, the coach of Team USA for the upcoming World Cup of Hockey, isn't backing off on his comments that he'd bench any player who didn't stand for the U.S. national anthem. The coach seemed taken aback Wednesday by the reaction to his comment, but he did not backtrack on his stance.