Monday, 10 October 2011

3.34

objective 3.34: understand that the incidence of mutation can be increased by exposure to ionizing radiation (for example gamma rays, x rays and ultraviolet rays) and some chemical mutagens (for example chemicals in tobacco)
 mutation can be triggered by
*radiation (x-rays, uv light which causes cancers)
*chemicals (found in tobacco often)
chemicals which cause mutation are called mutagens
chemicals that cause mutation and cancer are called carcinogens.


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