Approaches: Biological Approach - Evolution and Genes 0.0 / 5 ? PsychologyApproachesASAQA Created by: MathuraRajaseelanCreated on: 19-01-16 19:30 Evolution Gradual change within a species over several generations in response to environmental pressures 1 of 13 Natural Selection Inherited characteristics that enhance survival are passed on to the next generation 2 of 13 Adaptation Refers to a behavior or trait that will increase the chance of survival and boost reproductive success 3 of 13 Survival of the Fittest Only those best suited to a environment who have certain traits will survive and reproduce 4 of 13 Survival - Key Behaviours Fight or Flight, Sensory Reflexes, Allergies 5 of 13 Sexual Selection Individuals who have features that make them attractive to the opposite sex or help them compete for mates. Increasing breeding success rate. 6 of 13 Why is repression adaptive? Forgetting a memory can help you move on to live your life 7 of 13 Genotype Genetic Constitution of an individual (each cell has a copy) , variation for humans are 0.1%, we are 98% similar to chimpanzees 8 of 13 Phenotype result of interactions between inherited characteristics and the environment e.g. flamingos, fish - white to pink feathers 9 of 13 Sex and Gender Male (XY Testosterone) Female (** Oestrogen) - SRY Triggers the gene that will make you develop testes, if not triggered - ovaries are developed 10 of 13 MZ Twins 100% same DNA 11 of 13 DZ Twins 50% half DNA 12 of 13 Depression in Twins MZ (49%) DZ (17%) SIBLINGS (9%) 13 of 13
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