
Does particle spin affect life on Earth?
Daniel and Kelly’s Extraordinary Universe
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How Do Left-Handed Amino Acids Interact With Our DNA?
cosmic rays that come from space are not equally left or right handed when we talk about the particles spin. Most of the muons that come down on earth are left-handed not right-handed exactly and that creates a slight preference for left-handed amino acids. The weak force has this asymmetry and has very small effects on the chemistry of life it can for example change the electric and magnetic dipole moments of some of these atoms inside these molecules so their shape is slightly different if they're left-handed or right-handed.
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