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Life's Inevitability

• arclein
All living creatures on this planet use the same 20 amino acids, even though there are hundreds available in nature. Scientists therefore have wondered if life could have arisen based on a different set of amino acids. And what's more, could life exist elsewhere that utilizes an alternate collection of building blocks? "Life has been using a standard set of 20 amino acids to build proteins for more than 3

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