Sometimes mutating is bad for you:
Scientists have unlocked the entire genetic code of two of the most common cancers – skin and lung – a move they say could revolutionise cancer care.
Not only will the cancer maps pave the way for blood tests to spot tumours far earlier, they will also yield new drug targets, says the Wellcome Trust team. […]
The lung cancer DNA code had more than 23,000 errors largely triggered by cigarette smoke exposure.
From this, the experts estimate a typical smoker acquires one new mutation for every 15 cigarettes they smoke.
Although many of these mutations will be harmless, some will trigger cancer.
(via Social Physicist)