General Biology 2 Study Guide - Exam 2

Feb 3rd, 2012
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University of Miami
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Study guide for 2rd test of BIL160 (General Biology 2) at the University of Miami. Good for any general biology college course and/or AP Biology. Also useful in studying for graduate school admission tests such as the MCAT/DAT/PCAT/OAT.

Word Count: 1417
Showing Page: 1/6
Five criteria that must be met if a population is NOT to evolve: Random matingLarge population (no genetic drift) No natural selectionNo gene flowNo mutationsMicroevolution: changes in phenotypic and genotypic characteristics that do not result in speciationMacroevolution: phenotypic and genotypic changes that lead to the creation of a new species ? speciationRandom genetic drift: random events cause unpredictable fluctuations in allele frequencies from one generation to an other ? founder effect & bottle neck effect Mutation: the raw material of evolution and is the change of a nucleotide sequence of an organism's DNA.Assortative mating: no random mating. All the individuals have the same possibility to mate, no one has an advantage. Positive? individuals that have more similar phenotypic and genotypic characteristics tend to mate more often than predicted by their relative frequency Negative ? individuals that have less similar geno/pheno characteristics tend to mate more often than predicted by their relative frequencyGene: specific nucleotide sequenceAllele: any of the alternative versions of a gene Population: individual that can reproduce fertile off springsGene pool: all the alleles in all the loci in each individual of a populationPolymorphism: allele that encodes for two different types of phenotypeEvolutionary adaptation: is the ability to change a characteristic in order to adapt to a different environmentPhysiological adaptation: is the fact th

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