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Histidine is a polar uncharged amino acid.(a) True(b) FalseI had been asked this question in final exam.The doubt is from Chemical Basis of Life topic in division Chemical Basis of Life of Cell Biology

Answer»

The correct answer is (b) False

For EXPLANATION: Histidine is considered a polar charged amino acid although it is not fully charged at physiological pH. The ability of Histidine to gain or lose a PROTON in physiological pH RANGES, it is an important residue in active sites of MANY proteins.



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