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In O-linked glycoproteins, the carbohydrates may be attached to how many amino acids?

In O-linked glycoproteins, the carbohydrates may be attached to how many amino acids? Correct Answer 2

In O-linked glycoproteins, the carbohydrates may be attached to two of the 20 amino acids found generally. These carbohydrate moieties are added to the oxygen atom in the side chain of serine or Threonine.

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