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on Nov 19, 2014
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Rosetta Probe Discovers Organic Molecules on Comet
Of course, having the reverse isomer molecules would be advantageous against predators (who couldn't digest it) and a boon to natural selection.
Why would the reserve isomer not be digestible? The human body can metabolism racemic amino acids.
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Why would the reserve isomer not be digestible? The human body can metabolism racemic amino acids.