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Unformatted text preview: Life Science 15: Concepts and Issues Lecture 5: Nurturing nature: the power of culture 1/24/12 I. The four ways that evolution can occur II. Sexual selection: NS can create sex differences III. The norm of reaction illustrates the relationship between nature and nurture. What is an evolutionary successful organism?-an organism with greater reproductive success than other indivs in the pop. Critical to assessing fitness is understanding that it is measured:- relative to other genotypes/phenotypes in the population- in a specific environment- by reproductive success There is no absolute success There is only relative success This success is quantified as fitness. Fitness is the relative reproductive success of a phenotype or genotype. Alleles that confer the highest fitness on the individuals carrying them will increase their market share in a population over time. What do we expect fitness to do over time?...
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This note was uploaded on 04/10/2012 for the course LS 15 taught by Professor Phelan during the Spring '08 term at UCLA.
- Spring '08