Which of the following amino acids contains a | vedclass

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(B) Amino acids are classified based on the nature of their $R$ group side chains.$1$. Isoleucine has a non-polar,hydrophobic $R$ group.$2$. Glutamine

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Glutamine

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(B) Amino acids are classified based on the nature of their $R$ group side chains.$1$. Isoleucine has a non-polar,hydrophobic $R$ group.$2$. Glutamine has an amide group in its side chain,which is polar but uncharged at physiological $pH$.$3$. Aspartic acid has a carboxyl group in its side chain,making it polar and negatively charged (acidic).$4$. Arginine has a guanidino group in its side chain,making it polar and positively charged (basic).Therefore,Glutamine is the correct answer as it is polar and uncharged.

Which of the following amino acids contains a polar and uncharged $R$ group?

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