BIO342H5 Chapter Notes - Chapter 2: Intron, Microevolution, Soapberry
Document Summary
Bgyb51: chapter 2 (pages 37 49 and 53 65) The pattern of evolution: the first scientist to give a definition of species, john ray, states that . These muscles are effective for animals that are very hairy like chimpanzees. Most of us are not that hairy (except some of you hormone excessive freaks), and thus the result of these muscles contracting is goose bumps. This implies that we descended from ancestors who were hairier than us: read page 42 for more examples, vestigial traits also occur at a molecular level. Humans have one on chromosome 6; a dna sequence that looks like a gene for the enzyme cmah. It is actually disabled by a 92-base-pair deletion and humans cannot manufacture cmah. This explains that the human race must have descended from a common ancestor with the chimpanzees: read page 43 for more examples. Fossil: a trace of any organism that lived in the past.
