An international research team has overturned the harmonious message that flowed from the Human Genome Project in 2000 and discovered more DNA differences exist among people than the experts expected.
Using new technology to study the genomes of 270 volunteers from four corners of the world, researchers have found that while people do indeed inherit one chromosome from each parent, they do not necessarily inherit one gene from mom and another from dad.
One parent can pass down to a child three or more copies of a single gene. In some cases, people can inherit as many as eight or 10 copies…
