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Researchers say, for the first time, they've mapped the genetic code of a fetus. Dr.

A typical sunflower with a dark center and a mane of large yellow 'petals' (Credit: Wikimedia Commons) The word “sunflower” brings to mind a mane of vibrant yellow petals encircling a dark whorl of seeds.

The superbug MRSA (methicillin-resistant Staphylococcus aureus ) has provoked fear in doctors and patients alike because it is endowed with genetic characteristics that make it impervious to many antibiotics, and it can be deadly to boot.

By Virginia Gewin of Nature magazine Climate change represents a threat not only to the existence of individual species, but also to the genetic diversity hidden within them, researchers say. [More]

By Heidi Ledford of Nature magazine A prominent paper that claimed to reveal the genetic factors that help people live to 100 or older has been retracted, a year after it was first released. The study, published in Science , reported 150 genetic variations that could be used to predict whether a person was genetically inclined to see their 100th birthday

Two new studies report dramatic progress in treating advanced melanoma and lung cancer. Both treatments use an approach that is creating a lot of excitement among doctors - tailoring drugs to the genetic make up of individual patients. Dr.