Researchers have discovered a mechanism by which helical biomineral structures can be synthesized to spiral clockwise or counterclockwise using only either the left-handed or right-handed version ...

(And in case you’re wondering, no, you can’t get around this by describing spins as clockwise/counterclockwise instead of right/left. You get the same results if you substitute “clockwise ...

Remarkably, they could also make the helicoids turn clockwise or counterclockwise by simply using only either the left-handed or right-handed version of the amino acids aspartic acid and glutamic ...