Biomolecules have to be enantiomerically pure, exclusively right-handed or left-handed, to be used in living cells. Chemists can only produce mixtures of biomolecules in the lab due to all the side re...
I get where you’re coming from, on millions of planets they probably didn’t but on this one they did. Some call it chance, some call it divine providence. Who knows. But does it matter? Ultimately it resulted in life.