BIOL 100 Lecture Notes - Lecture 15: Selective Breeding, Modern Synthesis (20Th Century), Allele Frequency
Document Summary
Biology 100 - lecture 15 - mechanisms of evolution. Aristotle may have thought species were unchanging but other from greece, china, and. Uniformitarianism is modern geological and physical processes have remained constant through time. Lamarck proposed testable ideas about how species change. Lyell said that the earth must be very old since natural processes occur slowly and provides time for evolution to occur. Charles darwin was a naturalist on the hms beagle a ship that sailed around the world in the 1830s. Darwin"s observations helped him to formulate his theory of evolution which is known as natural selection. Darwin was not aware of mendel"s work. Thus darin"s origin of species did not have mechanism for natural selection. The modern definition of evolution is change in allele frequency within a population from one generation to the next. A population is a group of individuals of the same species at a given time. A population is a unit of evolution.
