How many stereocentres does the amino acid shown have?

Answer: D

The alpha carbon carries two hydrogen atoms, an NH2 group and a COOH group. Two identical substituents mean it is not a stereocentre, so the molecule (glycine) is achiral; RDKit also finds 0 stereocentres.

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More questions on Amino acids from drawn structures: side chain, chirality, charge

The side chain of the amino acid shown is best classified as NEET level
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