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Which of these are not present in every amino acid?(a) Amino group(b) Acidic group(c) α-carbon(d) SulphurThis question was posed to me during an online interview.The question is from Biomolecules in portion Biomolecules of Biology – Class 11

Answer»

The correct option is (d) SULPHUR

Easiest explanation: Amino ACIDS are the building blocks of PROTEINS. The have a chiral carbon or α-carbon. It contains one amino GROUP and one ACIDIC group. Only a few amino acids such as cysteine and methionine contain Sulphur.



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