Homochirality describes a property of some materials made up of chiral units. A substance is said to be homochiral if all the constituent units are molecules of the same chiral form (enantiomer). In biology homochirality is a common property of amino acids and sugars. The origin of this phenomenon is not clearly understood. It is unclear if homochirality has a purpose, however it appears to be a form of information storage. [1] One suggestion is that it reduces entropy barriers in the formation of large organized molecules.[2] It has been experimentally verified that amino acids form large aggregates in larger abundance from enantiopure substrates than from racemic ones.

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