Scientists worked out how many changes it takes to transform a healthy cell into a cancer: Just one mutation to drive thyroid and testicular cancers, four mutations to make a breast or liver cancer, and 10 mutations to create a colorectal cancer, as reported in journal Cell.

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Scientists worked out how many changes it takes to transform a healthy cell into a cancer: Just one mutation to drive thyroid and testicular cancers, four mutations to make a breast or liver cancer, and 10 mutations to create a colorectal cancer, as reported in journal Cell.