DNA. The self-replicating molecule

Originally published at: https://bigideas.network/self-replicating-molecule/

If given a time machine, almost every biologist on Earth would race to be sent back to an inconspicuous, shallow rock pool, 4.28 billion years ago.

They’re there to witness the most important thing to ever happen on Earth. Abiogenesis, the origin of life.

The first life on Earth was just a chemical. It was a tiny, colourless molecule that would have been invisible to us, and it never left a trace. However, we carry its imprint within every cell of our bodies.

Abiogenesis happened when this molecule learned how to make a copy of itself

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