Steve Mould | Homochirality: Why Nature Never Makes Mirror Molecules @SteveMould | Uploaded 4 years ago | Updated 1 hour ago
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Molecules of biological origin always have a fixed handedness or chirality. For example you only ever see right handed sugars and left handed amino acids in nature. But why?

Credits:

Meteorite image - Art Bromage - commons.wikimedia.org/wiki/File:Murchison_meteorite.jpg
RNA and DNA images - Sponk - commons.wikimedia.org/wiki/File:Difference_DNA_RNA-EN.svg
Viking lander video - MASA

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