Environmental Influences Appear to Contribute to Cellular Mutations That Lead

question 32

Multiple Choice

Environmental influences appear to contribute to cellular mutations that lead to tumour growth.For example,certain diets lead to higher incidence of colon cancers,and overexposure to sunlight leads to higher incidence of skin cancers.The tissues in closest contact with a carcinogen or mutagen (anything that causes genetic mutations) are obviously the ones most likely to develop tumours.Carcinomas account for well over half of all cancers.What type of tissue would you guess the term carcinoma is most closely associated with?

• A)connective
• B)muscle
• C)epithelial
• D)nervous
• E)all of the above

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