Q26 / 120 · VITEEE 2009 · Chemistry

How many tripeptides can be prepared by linking the amino acids glycine, alanine and phenyl alanine?

  • A
    One
  • B
    Three
  • Correct answer
    C
    $\mathrm{Six}$
  • D
    Twelve

Solution

Tripeptides are amino acids polymers in which three individual amino acid units, called residues, are linked together by amide bonds. glycine $\left(\mathrm{NH}_{2}-\mathrm{CH}_{2}-\mathrm{COOH}\right)$, alanine Figure
can be linked in six different ways.

Hence, the correct answer is option: 'C'.

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