BIOL 1F90 Lecture Notes - Lecture 14: Horizontal Gene Transfer, Convergent Evolution, P53
12 Jan 2016
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Geo-: earth para-: beside, next to ortho-: straight homeo-: likeness, similarity. Analogous: showing similarity of function bio: life or relating to living evolution: change. Group of related organisms that share a distinctive form. Among species that reproduce sexually, members of the same species are capable of interbreeding to produce viable and fertile offspring. A group of organisms belong to the same biological species if they are (actually or potentially) capable of interbreeding to produce fertile offspring. A heritable change in one or more characteristics of a population or species across many generations. Viewed on a small scale relating to changes in a single gene in a population over time = microevolutionary change. Viewed on a larger scale relating to formation of new species or groups of species. Mid to late 1600s, ray was the first to carry out a thorough study of the natural world by linnaeus. Neither proposed that evolutionary change promotes the formation of new species.
