Question 37

A tetrapeptide has -COOH group on alanine. This produces glycine (Gly), valine (Val), phenyl alanine (Phe) and alanine (Ala), on complete hydrolysis. For this tetrapeptide, the number of possible sequences(primary structures) with $$-NH_2$$ group attached to a chiral center is

Correct Answer: 4

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