|Aug23-12, 07:36 AM||#52|
What came first, the chicken or the egg?
The chicken and and egg are just metaphors for DNA and Protein. The proteins can catalyse reactions as enzymes. They are both essential for life and you can not have one without the other. So how did life arise from the primordial soup without pre-existing DNA and proteins? The answer was a molecules that could perform both roles of replication and of catalysing reactions called RNA - ribonucleic acid; as opposed to deoxyribonucleic acid - DNA and RNA.
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