More variation in human genome than expected: Surprisingly common transposons or 'jumping genes' are known to cause disease

Scientists are finding more variation in the human genome than they had expected, according to new research. The study is one of the first to take an in-depth look at transposons, segments of DNA that can replicate themselves and move to new sites in each individual's genome. The researchers found that new occurrences of transposons were surprisingly prevalent in human and in lung cancer genomes.

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