'Panda Grandpa' Pan Pan Dies In China
Pan Pan, who died this week at the age of 31, was known as the "panda grandpa": He has some 130 descendants worldwide, accounting for a quarter of the world's captive giant pandas.
You are you because of a unique combination of your parents' genes, coded into the strands of DNA molecules, coiled tightly around an “X-shaped” structure. This is a chromosome, and you have 23 pairs of them, deep down in the nucleus of all 37 trillion cells in your body.
Dr. Beth Sullivan, Associate Professor of Molecular Genetics and Microbiology at Duke University, studies chromosome rearrangements in her lab and how they may cause disease.