Question:medium

Amino acid 'X' contains phenolic hydroxy group and amino acid 'Y' contains amide group. 'X' and 'Y' respectively are

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Remember the side chains (R-groups) of the common amino acids. - $\text{Tyrosine}$ has a phenolic group (and is classified as an aromatic amino acid). - $\text{Serine}$ and $\text{Threonine}$ have aliphatic alcohol groups. - $\text{Asparagine}$ ($\text{Asn}$) and $\text{Glutamine}$ ($\text{Gln}$) have amide groups.

Updated On: Mar 30, 2026

$\text{Ser}, \text{Arg}$
$\text{Cys}, \text{Lys}$
$\text{Thr}, \text{Asn}$
$\text{Tyr}, \text{Gln}$

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The Correct Option is D

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