Which of the following amino acids contains a | vedclass

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Question

(A) Amino acids are classified based on the nature of their '$R$' group.$1$. Arginine contains a guanidino group in its side chain,which is polar and

Vedclass · Accepted Answer

Arginine

Vedclass · Answer

(A) Amino acids are classified based on the nature of their '$R$' group.$1$. Arginine contains a guanidino group in its side chain,which is polar and carries a positive charge at physiological $pH$.$2$. Asparagine has a polar but uncharged '$R$' group (amide group).$3$. Aspartic acid has a polar and negatively charged '$R$' group (carboxyl group).$4$. Alanine has a non-polar,hydrophobic '$R$' group (methyl group).Therefore,Arginine is the correct answer.

Which of the following amino acids contains a polar and positively charged '$R$' group?

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