A hexapeptide is represented by the one-letter code sequence H - W - R - E - Q - K . The ratio of the number of basic amino acids to the number of acidic amino acids in this sequence is

Step-by-step solution

First, decode the one-letter codes into their corresponding amino acids: H = Histidine W = Tryptophan R = Arginine E = Glutamic acid Q = Glutamine K = Lysine Next, classify each amino acid based on the nature of its side chain: Basic amino acids: Histidine ( H ), Arginine ( R ), and Lysine ( K ). Total = 3 . Acidic amino acids: Glutamic acid ( E ). Total = 1 . Neutral amino acids: Tryptophan ( W ) and Glutamine ( Q ). The ratio of the number of basic amino acids to acidic amino acids is 3:1 . Answer: 3:1