Selfish Genes 2 0.0 / 5 ? BiologyAnimal BehaviourUniversityAll boards Created by: Z0ologyCreated on: 04-10-22 11:02 What does reproductive success mean More offspring = higher genetic contribution to the next generation 1 of 18 Gene-centered view helps explain why individuals do what sometimes help others to survive at a cost to themselves 2 of 18 Who suggested the concept of selfish genes Richard Dawkins 3 of 18 What is the selfish gene theory When alleles increase their own frequency and decrease the frequency of alternative/competing alleles, 4 of 18 The idea of gene-centred evolution and selfish genes can help us to explain what type of behaviour in animals Both 5 of 18 What is alturism actor performs action at a cost to themselves but benefits* another 6 of 18 What is selfishness actor performs action that reduces the benefit* to another (Benefit here is taken to mean gaining offspring) 7 of 18 What are concepts to consider when thinking about evolution of altruism Kin selection 8 of 18 What is hamiltons rule for altruism r B – C > 0 9 of 18 in hamiltons rules (for altruism) what does the r stand for coefficient of relatedness 10 of 18 in hamiltons rules (for altruism) what does the b stand fo fitness benefit to the receiver 11 of 18 in hamiltons rules (for altruism) what does the c stand for fitness cost to the performer 12 of 18 What does fitness mean Average genetic contribution to the gene pool of the next generation 13 of 18 Direction fitness + indirection fitness = *BLANK* fitness Inclusiv 14 of 18 What does indirection fitness mean Genes contributed indirectly via helping related individuals 15 of 18 what does inclusive fitness mean Sum of direct and indirect fitness 16 of 18 What is the green beard effect in kin recognition when individuals of a species help others that have the same obvious trait as them 17 of 18 What is phenotype matching in kin recognition Animals learn and use own phenotypes as reference for recognition of relatives based on sound, odour, appearance cues etc 18 of 18
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