I wonder if the pre-LUCA ribosome itself might have been radically different before we fixed on 20 amino acids? Obviously the protein scaffolding would be different, but also it could afford to be a ...
1monon MSN
Scientists changed a lifeform’s fundamental code. It shouldn’t have survived—but it did.
20 amino acids are usually necessary for life, but scientists successfully deleted one.
Most hypotheses suggest that earlier forms of life had partial genetic codes and used fewer than 20 amino acids. To test these hypotheses, a team from Columbia and Harvard decided to see if they could ...
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