How does
Biochemistry provide evidence for Evolution? When you compare amino acid sequences with humans and animals, the data shows only a couple of differences in. Data from amino acid sequences generally agree with the anatomical data that can be used to make a cladogram. Organisms with fewer shared anatomical traits also have more amino acid differences. A "human-monkey" relationship is a closer relationship compared to a "duck-chicken" relationship, proven by the molecular data. We can be fairly confident that the amino acid pattern is accurate because the molecular data, the structural similarities and the
fossil record all support the same pattern of relationships. Chicken and turkeys are both birds and have the same sequence of amino acids in their cytochrome-c protein because they both came from the same common ancestor.
 |
| Cladogram |
