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If the molecular mass of an amino acid is 150 daltoms, the molecular mass of a tripeptide will be

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If the molecular mass of an amino acid is 150 daltoms, the molecular mass of a tripeptide will be
A. 450
B. 486
C. 504
D. 414
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Correct Answer - D
Tripeptide is formed by the condensation of 3 amino acids with lose of `2H_(2)O` molecules. The molecular mass of 2 water molecules is `18 xx 2 = 36`. Therefore , tripeptide mass will be `(150 xx 3) - 32 = 414`
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