top | item 34936307 (no title) nicolaslegland | 3 years ago https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6027462/ TL;DR: Biotic implies L-chirality. Ryugu exhibits balanced chirality. discuss order hn newest kevviiinn|3 years ago Earth biotic origin implies L, I think it is theoretically possible if life developed elsewhere that other enzymes may preference R. AFAIK our enzymes are generally conserved throughout life madaxe_again|3 years ago Indeed. Asimov’s “Left hand of the electron” has an essay which explores and explains why life inevitably ends up with a chiral preference. _a_a_a_|3 years ago "Biotic implies L-chirality" on this planet sure, but it's one data point to extrapolate from. It's not enought. nicolaslegland|3 years ago This is the data point we discuss panspermia vs abiogenesis upon, R-chirality couldn't have spawned the L-chirality lineage here.
kevviiinn|3 years ago Earth biotic origin implies L, I think it is theoretically possible if life developed elsewhere that other enzymes may preference R. AFAIK our enzymes are generally conserved throughout life madaxe_again|3 years ago Indeed. Asimov’s “Left hand of the electron” has an essay which explores and explains why life inevitably ends up with a chiral preference.
madaxe_again|3 years ago Indeed. Asimov’s “Left hand of the electron” has an essay which explores and explains why life inevitably ends up with a chiral preference.
_a_a_a_|3 years ago "Biotic implies L-chirality" on this planet sure, but it's one data point to extrapolate from. It's not enought. nicolaslegland|3 years ago This is the data point we discuss panspermia vs abiogenesis upon, R-chirality couldn't have spawned the L-chirality lineage here.
nicolaslegland|3 years ago This is the data point we discuss panspermia vs abiogenesis upon, R-chirality couldn't have spawned the L-chirality lineage here.
kevviiinn|3 years ago
madaxe_again|3 years ago
_a_a_a_|3 years ago
nicolaslegland|3 years ago