Feb 18th, 2010 · Identical twins look alike and share the same DNA, but they aren't completely identical. Some of the differences can be caused by the environment. But a new study says the differences can also depend on which genes are switched on, and which aren't.
Feb 10th, 2010 · Scientists have sequenced most of the DNA of a 4,000-year-old human using tufts of hair found in Greenland. The researchers say this is the most complete reconstruction of ancient human DNA to date and reveals details not only of the man himself but also where his people came from.
Jan 22nd, 2010 · Brenda Tan and Matt Cost, high school seniors from Trinity School in New York City, used a technique called DNA barcoding to find out what species were present in over 200 animal products. Their results suggest buyers should beware!
Jan 18th, 2010 · The world's most expensive ham goes on sale Monday at a posh food store in London. Each Albarragena ham leg is wrapped in a special apron made by a Spanish tailor. Given the $3,000 price tag, the hams come with DNA certificates — proving the meat comes from pigs fed on wild grasses, roots and acorns who roam freely in the fields of western Spain.
Dec 30th, 2009 · James Bain was 19-years-old in 1974, when he was arrested and charged with kidnapping and raping a 9-year-old boy. He was convicted largely because the boy identified him in a police lineup. After serving 35 years in prison, James Bain was recently freed after DNA testing — which he pleaded for when he was initially accused — found him innocent of the crime. Bain talks about his life as a freed man and whether he holds any resentment toward the judicial system for the life-changing error.
Dec 28th, 2009 · Using DNA tests, two seniors at Manhattan's Trinity School found plenty of food that wasn't what the labels said it was. A test of DNA from a cockroach found in an apartment on the Upper West Side suggests it may represent a new species or subspecies.
Dec 27th, 2009 · The "Do It Yourself" movement works well when you're talking about making your own music or growing your own vegetables. But some people are starting a DIY-biology movement. They're studying things like DNA and E. coli bacteria in home laboratories. And for now, the industry is largely unregulated. Host Guy Raz speaks with Jason Bobe, founder of the group DIYbio.
Dec 18th, 2009 · Woolly mammoths and ancient horses may have been roaming the North American steppes longer than scientists thought. Evolutionary biologist Eske Willerslev describes how his team used DNA samples taken from permafrost cores to recalculate when the animals may have disappeared.