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AAMC Official Prep Sample Test
#1 Posted : Wednesday, June 09, 2021 9:45:58 PM
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Passage 9 Question #49 / #50

For question #49, the answer is C since aspartate is the only amino acid with a carboxylate. However, for question #50, the answer is B, and neither of these have a carboxylate R group. I understand that for Q50 the answer is B since both amino acids are positively charged which contributes to the ionic interactions with the negatively charged ADP, but the carboxylate requirement stated in the passage is confusing me.

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