Multiple Choice
When end-group analysis was done on the protein insulin, the results indicated that both glycine and phenylalanine were N-terminal amino acids and both asparagine and alanine were C-terminal amino acids. These results indicate that
A) the experiment was done incorrectly
B) no conclusions can be drawn
C) there were impurities in the sample
D) insulin consists of two polypeptide chains
Correct Answer:

Verified
Correct Answer:
Verified
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