Biology 1001A Chapter Notes - Chapter 17.4: Evolution, Comparative Anatomy, Macroevolution
Document Summary
Darwin and wallace developed the foundation for evolutionary biology without completely understanding how it worked because they did not know about genetics. At the same time, mendel published on inheritance in pea plants. His results were clearly understood because his experiments were based on 1 gene (height) Morgan determined that genes are carried on chromosomes which linked darwin and. Populations genetics constructs mathematical models which applied equally well to simple and complex traits, to predict how natural selection and other processes influence a population"s genetics. Modern synthesis is a unified theory of evolution that integrate data from biogeography, comparative morphology, genetics, paleontology, and taxonomy within an evolutionary framework (focus on evolutionary change within populations. Microevolution is the small-scale genetic changes that populations undergo, often in response to shifting environmental circumstances. Macroevolution describes larger-scale evolutionary changes observed in species and results from the gradual accumulation of microevolution. Biological evolution involves the combination of heritable changes in individuals and selective pressure.
