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In an α helix, the carbonyl (C=O) of one amino acid is hydrogen bonded to the amino H (N-H) of an amino acid that is four down the chain. ... In a β pleated sheet, two or more segments of a polypeptide chain line up next to each other, forming a sheet-like structure held together by hydrogen bonds.Greek letters alpha and beta have been used to specified at least three different pairs of structure name and briefly describe them in zoloogy
Greek letters alpha and beta have been used to specify it is three different pairs of structure name and briefly describe them in zoology Campbell book The electric field intensity at any point due to a system or group of charges is equal to the vector sum of electric field intensities due to individual charges at the same point. Here, ri is the distance of the point P from the ith charge Qi and ri is a unit vector directed from ^Qi to the point P.