Identify whether each statement applies to DNA, RNA, both, or neither. A) It can contain the pyrimidine uracil.                   B) Nitrogenous bases are attached to pentoses via ?β N-glycosidic linkage.                        C) It is stable to alkaline hydrolysis.               D) Nitrogenous bases are attached to pentoses via phosphodiester linkage.

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Q: A) Draw L-histidine. Label all ionizable groups with the appropriate pKa.

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