This, some scientists believe, leads to new illnesses formed by genetic mutation crossing the species barrier and entering the human population.

ECONOMIST: Still spreading | The

This, some scientists believe, leads to new diseases formed by genetic mutation crossing the species barrier and entering the human population.

ECONOMIST: Getting better, or worse? | The

The charity said around 4% of patients across the UK have the G551D mutation, compared to around 11% of the Scottish cystic fibrosis population.

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They carry the mutation for Tay-Sachs disease nine times more often than the general population.

ECONOMIST: A test of uncertainty

The re-arrangement or sequence of the nucleotides on the DNA ladder may result in a mutation that leads to an inherited disease, which only affects maybe 2% of the human population.

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