For generations, a tiny piece of DNA has mastered the art of inheritance by hijacking the yeast cell’s division machinery, despite providing no known benefit to its host, the yeast.

Did you know Down;s syndrome is the most common genetic disorder in humans? Characterized by physical and mental disorders of varying degree, this disorder is seen in 1 per 800 births in India and these numbers are set to increase. But what causes Down’s syndrome in the first place and how is it treated? On this World Down Syndrome Day, here is a all you need to know about this disorder and how you can help those affected by the same.