BIOL 351 Lecture 2: Bio 351 Evolution Test 2 Review
Document Summary
Just relations (number of branches: phylogram e. i. Two things on the side of a common. Monophyletic group a species that share a pair of scissors and only cut it once) group which forms a clade all common ancestor (i. e. you can use a m. i. 1. m. i. 2. Paraphyletic group a group which forms a clade but leaves out some members descended from mrca m. ii. 1. Polyphyletic group a group that does not share a common ancestor m. iii. 1. Traits that are shared due to ancestry a. i. 1. Traits that look the same because the came from a: homoplasy similar ancestor. Traits that are shared due to evolution (analogous) b. i. 1. Traits look the (phenotypically) but do same ancestor: synapomorphy convergent same not share c. i. Shared derived trait best for deducing relationships c. i. 1. What we use for determining shared traits in phylogenic trees c. i. 2. Change in traits is what we look for: synplesiomorphy d. i.
