Multiple choice Which of the following pairs of amino acids has one acidic and one basic amino acid? Arginine and glycine Aspartic acid and arginine Glycine and histidine Serine and aspartic acid None of these Reveal answer Fill a bubble to check yourself B Correct answer Explanation This option is correct because aspartic acid acid contains one amino acid group and two carboxyl group while arginine contain two amino acid and one carboxyl group.