Which of the following basic amino acids is t | vedclass

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(C) Amino acids are classified as basic if they contain an extra amino group in their side chain. $Lysine$,$Arginine$,and $Histidine$ are the three ba

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Histidine

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(C) Amino acids are classified as basic if they contain an extra amino group in their side chain. $Lysine$,$Arginine$,and $Histidine$ are the three basic amino acids. $Glycine$ is a neutral amino acid. Among the basic amino acids,$Histidine$ is the least basic because its imidazole ring has a $pK_a$ value of approximately $6.0$,which is close to physiological $pH$,whereas $Lysine$ $(pK_a \approx 10.5)$ and $Arginine$ $(pK_a \approx 12.5)$ are much more basic.

Which of the following basic amino acids is the least basic?

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