Harbaugh Brothers Offer Lesson in Genetics

AP Photo

NEW ORLEANS -- America's leading genetic experts agree: Jim and John Harbaugh have something in common.


"As brothers, half of their genes are identical by descent, plus an additional increment which will be essentially the same," according to Dr. David Valle, Professor of Genetics at Johns Hopkins University.


"Each parent provides half the DNA, but it's not the same half. It gets split differently," adds Dr. Barry Starr, Director of Outreach Activities at the Stanford University Department of Genetics.


Jim and John Harbaugh are brothers, or to use the more scientific and politically correct term, siblings. The Harbaughs held a press conference on Friday to educate the public on their unique biological...

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