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OpenStudy (anonymous):
Are cytosine and Tyrosine the only amino acids that are ionized R-group chains at pH of 7?
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OpenStudy (anonymous):
open organic chemistry text book and in index search amino acids and read about them, i cant remember on top of my head, your best bet is to google for pKa/pH neutral values then compare them to pH of human body
OpenStudy (anonymous):
email your professor they always help
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