2. Did all proteins give a positive xanthoproteic test? Did all the amino acids? Look up the composition of gelatin on the internet and suggest an explanation for your observations on the proteins.
Added by William S.
Step 1
The xanthoproteic test is used to detect the presence of aromatic amino acids, such as tyrosine and tryptophan, in proteins. Therefore, proteins that do not contain these aromatic amino acids will not give a positive xanthoproteic test. Show more…
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