The artificial sweetener Nutrasweet
® (aspartame) is not a derivative of sugar, but is actually a small dipeptide. What two amino acids make up the basic structure of Nutrasweet
®?

◦ glutamic acid and phenylalanine
◦ asparagine and tyrosine
◦ aspartic acid and phenylalanine
◦ serine and glycine
◦ aspartic acid and tryptophan