Research at Manchester University in the UK has demonstrated that two of the four building blocks of RNA can by synthesized in the laboratory. RNA is a self-replicating molecule which is an intermediary molecule and makes protein from DNA. DNA, of course, encodes the genetic blueprint for life.
One of the big questions is, which came first, DNA or RNA? This is a significant scientific step but there is a long long way to go in unlocking the mystery of the origin of life.
For further reading for all you chemistry and biology geeks, click here.
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