A team of researchers at Manchester University have solved the mystery of how life on Earth began. DNA encodes the genetic blueprint, while RNA molecules act as the means to make protein from DNA. In other words, RNA has long been suspected to be the origin, but until now, it was hard to explain how.
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Mystery of how life on Earth began solved by British scientists - Telegraph
(Click here to see the difference between DNA and RNA)
Science Museum | Your life-cycle | What is RNA?