Biochemistry - Structure and Properties of Amino Acids - Discussion

Discussion :: Structure and Properties of Amino Acids - Section 1 (Q.No.19)


Which of the following is not a sensible grouping of amino acids based on their polarity properties?

[A]. Ala, Leu, and Val
[B]. Arg, His, and Lys
[C]. Phe, Trp, and Tyr
[D]. Asp, Ile, and Pro

Answer: Option D


No answer description available for this question.

Jessi said: (Mar 4, 2017)  
Alanine, Leucine.and Valine are all non polar and aliphatic.
Arginine, histidine and lysine are positively charged.
Phenylalanine, tryptophan and tyrosine are aromatic.
The last options do not relate.

Sudarshana Ranjan said: (Sep 30, 2017)  
Non polar group of amino acid must be non sensible then answer is alanine leucine valine.

Avinesh said: (Jul 10, 2020)  
Based on polarity, Phenylalanine is a non-polar amino acid. Whereas, Tyrosine and Tryptophan are polar amino acids. That's why option C be the answer.

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