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What drives evolution? | Denis Noble | Reason with Science | Darwin | Selfish genes | Richard Dawkins

Reason with Science

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The Double Helix and the Process of Control of the Molecular Biology

The DNA is not itself a self-replicator. It gets replicated and I think that's a better expression for it, but it's not a self- Replicator. The double helix means that each nucleotide naturally connects to its partner. So as you have one thread of the double helix open, the appropriate partners will naturally, chemically, come in place. Now that's very much like crystallization. Crystals form and grow because the molecules in solution, not yet in the crystal, find it easy in a kind of lock and key fashion to fit into the rest of the crystal. That's how a crystal grows. But there's always an energy to that process of binding

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