BIO220H1 Chapter Notes - Chapter 3: Flocculation, Inclusive Fitness, Kin Selection
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BIO220H1 Full Course Notes
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Direct fitness: gene that may increase the fitness of the individual in which it finds itself. Indirect fitness: gene may increase the fitness of other individuals that carry copies of the same gene (worker bees help queen bee to reproduce but have no reproductive fitness self) If indirect fitness benefit outweighs the cost to the direct fitness, costly cooperative behaviour may evolve. Individuals act to maximize their inclusive fitness (the sum of indirect and direct fitness components) Kin selection (common costly cooperative behaviour): cost cooperative behaviour is directed towards close relatives (ex; passing on the same number of genes to the next generation by saving cousin/siblings at cost of own life) Gene or set of gene did three things: It allows individuals with this label to identify other individuals with the same label. It causes individuals with same label to behave neopotiscally towards each other (individuals will behave favourably toward other individuals as long as they have this label)
