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One of the big problems in Biology is to figure out how nature selected only left-handed amino acids and right-handed sugars for our bodies even though synthesizing these gives us a mixture of both left and right. There must be some mechanism that selects one molecule over the other. Having order or (wiggle room) maximizes entropy. There still seems to be a problem in nature and still no real explanation for nature's preferences for L-amino acids and D-sugars.

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11y ago

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