Researchers find new translocation; weak spots in DNA lead to genetic disease

A genetics research team based at The Children's Hospital of Philadelphia continues to discover recurrent translocations -places in which two chromosomes exchange pieces of themselves. As many as 1 in 600 persons carry balanced chromosome translocations, which involve no loss or gain of DNA. Most such people appear healthy, but may have a child with abnormal chromosome composition and disabilities resulting from disrupted, extra or missing copies of genes.

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