Biochemistry - Structure and Properties of Amino Acids - Discussion

Discussion :: Structure and Properties of Amino Acids - Section 1 (Q.No.3)

3. 

What is the heaviest of the twenty amino acids?

[A]. Phenylalanine
[B]. Tryptophan
[C]. Tyrosine
[D]. Histidine

Answer: Option B

Explanation:

No answer description available for this question.

Regina Sanco said: (Sep 24, 2013)  
This is due to it's bulky R group or side chain.

Pragya Pratibha said: (Sep 25, 2013)  
Molecular masses:

Tryptophan 204.

Phenylalanine 165.

Tyrosin 181.

Histidine 155.

Cholo said: (Dec 27, 2016)  
B is correct. I agree.

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