BIOL 111 Lecture Notes - Lecture 12: Speciation
Document Summary
The genes that are in the next generation are determined by the genes in the current generation who survive and reproduce. Evolution- change in a population over time, through descent. Prokaryotic cells reproduce quickly and can be used to see evolutionary. Population- a group of individuals who as a group, can reproduce successfull have kids that are the same species, living in the same time and the same pla. Combination of traits in result of a combination of things that effects us. Species go extinct if it doesn"t have variation to evolve. Directional selection- when there is a shift toward one extreme or the other. Stabilizing selection- a reinforcement of the average (in the middle somewhe reinforce wherever you are) the genes in the nary change ssfully and e place ects us other ewhere, reinforce wherever you are) Disruptive selection- loss of the average and shift to both extremes.