Evolution and Taxonomy

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Terms in this set (32)
What type of test could you use to create a DNA fingerprint for two organisms to look at their genetic similarities?Gel electrophoresisHow can we determine the relative age of ancient organisms from their fossil position in rock layers?Principal of superposition- the older fossils are at the bottom and newer at the top. You cant take a shell or rock and whatever the age of that shell or rock the fossil will be the same.If you have 16 organisms in a population, each with 2 alleles for a trait, what is the gene pool number for that trait?32List the parts of Darwin's theory of natural selection.-Variation in population -Variations are favorable -more young produce than can survive -Those that survive and reproduce have favorable characteristic. -Over time small changes accumulate causing population to change.Hardy Weinberg: 5 requirements--No Natural selection -random mating - No migration -No mutation -large populationHierarchy ( domain, kingdom, phylum, class, order, family, genus, species) and why classify?Scientist needed a standard system to communicate. Or talk about species around the world so people would know what you are talking about.Spontaneous generationHypothesis that life could come from non living matterBio genesislife only coming from lifeFather of EvolutionCharles DarwinPopulationsGroups of interbreeding organisms -live in the same place at the same time -compete with each other for food, water, and matesLamarcks Hypothesis1. Organisms strive for self improvement 2. The effort to improve caused most used body parts to develop. 3. Once the structure is modified, its inherited to offspring.where did Darwin voyage toGalapagos islandsPhylogenetic treeAll organisms share a common ancestorHomologousDifferent on the surface but similar structureVestigial StructureInherited but not used (appendix, wisdom teeth)GradualismEvolution is gradual and continuouspunctuated equilibriumPeriods of rapid change in species separated by periods of little or no change.Ways Variations come aboutNeutral,Harmful, FavorableNicheWay of life of a population and how it relates to its environment ( what it eats, where it lives, Role in environment)adaptationAny inherited characteristics that increases an organisms chance of survivalFitnessAbility of an individual to survive and reproduce in its specific environmentFather of modern TaxonomyCarolus Linnaeus