Decent with modification: Darwinian view of evolution
205940002 | natural selection | mechanism of evolution whereby there is differential reproductive success | 0 | |
205940003 | artificial selection | mechanism of evolution whereby "humans" control the reproduction of living organisms favoring or not favoring specific traits | 1 | |
205940004 | evolution | change over time | 2 | |
205940005 | speciation | formation of a new species | 3 | |
205940006 | extinct | organisms that are no longer alive on Earth | 4 | |
205940007 | extant | refers to organisms that are currently present on Earth | 5 | |
205940008 | allele | one of two or more alternative forms of genes | 6 | |
205940009 | population genetics | the study of the genetics of the overall group/population | 7 | |
205940010 | homologous structures | structures that are anatomically similar but perform different functions, example a forelimb of a bat and cat, signs of closer evolutionary ancestry | 8 | |
205940011 | analogous structures | structures that are anatomically dissimilar but perform similar functions, example a bat wing and bee wing, signs of more distant evolutionary ancestry | 9 | |
205940012 | gene flow | the movement of genes between different populations, immigration and emigration | 10 | |
205940013 | mutation | a permanent change in a cell's DNA | 11 | |
205940014 | genetic drift | random changes in allele frequencies, effects most pronounced in small populations | 12 | |
205940015 | divergent evolution | description of an evolutionary history that demonstrates branching evolution and a more common/shared ancestry | 13 | |
205940016 | convergent evolution | description of an evolutionary history that demonstrates individual development of similar structures and a less common ancestry | 14 | |
205940017 | microevolution | change in allele frequencies in a population over time | 15 | |
205940018 | assortive mating | the mating of phenotypically similar organisms | 16 | |
205940019 | genotype | the genetic makeup at a particular locus | 17 | |
205940020 | phenotype | the visible appearance, the trait that is observed | 18 | |
205940021 | fitness | the genetic contribution of an individual to succeeding generations, quantifying reproductive success | 19 | |
205940022 | relative fitness | the fitness of one individual when compare to another | 20 | |
205940023 | frequency dependent selection | this is when the frequency or % of the individuals with that phenotype compared to the alternate phenotypes alters fitness | 21 | |
205940024 | heterozygote advantage | natural selection that favors the heterozygote genotype and phenotype over both homozygous genotype, maintains variation in a population | 22 | |
205940025 | stabilizing selection | selection acts to increase the average phenotype, occurs when the average phenotype is well matched with the environment | 23 | |
205940026 | disruptive selection | selection acts to favor both extreme phenotypes and is often associated with future speciation events | 24 | |
205940027 | directional selection | selection that favors one of the extremes and not the other | 25 |