https://pages.htgaa.org/2026a/alvaro-pacheco-concha-buonamici/homework/week-4-protein-design-part-i/index.htmlPart A. Conceptual Questions Why do humans eat beef but not turn into cows, and eat fish but not turn into fish? Organisms do not incorporate intact proteins. Instead, they degrade them into amino acids, which are then reassembled according to the organism’s own genome. Molecular identity is determined by genetic information, not by the origin of the raw material. Why are there only 20 natural amino acids? Only 20 were selected by early evolution because they possessed a specific chemistry that allowed for a functional balance of hydrophobicity, specific folding patterns, and various electrical charges.Hugoen