question_answer

The following tripeptide can be synthesized from the following ammo acid

A)  Glycine, Leucine and Alanine

B)  Alanine, Isoleucine and Giycine

C)  Valine, Alanine and Glycine

D)  Alanine, Serine and Glycine

Correct Answer: C

Solution :

 \[{{H}_{2}}N-\underset{\begin{smallmatrix}  | \\  {{(C{{H}_{3}})}_{3}}  \\  Valine \end{smallmatrix}}{\mathop{CH}}\,-COOH+\underset{\begin{smallmatrix}  | \\  H \end{smallmatrix}}{\mathop{HN}}\,-\underset{\begin{smallmatrix}  | \\  C{{H}_{3}}  \\  Alanine \end{smallmatrix}}{\mathop{CH}}\,-COOH\]\[\underset{Glycine}{\mathop{+\underset{\begin{smallmatrix}  | \\  H \end{smallmatrix}}{\mathop{HN}}\,-C{{H}_{2}}-COOH}}\,\]