Cancer Genetics And Melanoma
Cancer Genetics Cancer begins when one or more genes in a cell mutate (change from their normal form). This either creates an abnormal protein or no protein at all, both of which cause mutated cells to multiply uncontrollably. A large number of genes are being investigated for their role in melanoma, including inherited genes and genetic defects that are acquired due to environmental factors, such as excessive sun exposure. So far, specific genetic variations account for only 1% of all melanoma diagnoses, although a 2009 study of twins with melanoma showed that 55% of a person’s total melanoma risk may be due to genetic factors....