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BU PSYC 111 - Nature Vs. Nurture Part 2
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PSYC 111 1st Edition Lecture 5Outline of Last Lecture I. Data Collection MethodsII. StatisticsIII. Special Considerations for Psychology ExperimentsIV.GeneticsOutline of Current Lecture II. Ways That Genes Effect BehaviorIII. Polygenic EffectsIV. EvolutionCurrent LectureI. Ways That Genes Effect BehaviorOne way that genes can effect behavior is through the dominant and recessive genes. The dominant gene is able to be affected by Huntington’sDisease, which is a muscular disease which leads to mental decline. The recessive gene is receptive to PKU, which is an autosomal recessive disorder. The sex-linked genes are responsible for red-greencolorblindness in men, and is when the locus is on the x chromosome and missing on the y chromosome. Lastly we have autosomal abnormality, which is responsible for Trisomy21, also known as DownSyndrome, which is when the 21 gene pair has 3 chromosomes instead of 2.II. Polygenic EffectsOne polygenic effect that is studied is height in humans, which is due to genes, but also nutrition and other values. A psychological trait is intelligence, which is exemplified by Tryon’s rat research which studied selective breeding. The rats were divided into bright and dull rats based on how fast they made it through a maze, and then it was studied how the rats breeded, if they smart rats breeder with only smart rats. Galtive’s research These notes represent a detailed interpretation of the professor’s lecture. GradeBuddy is best used as a supplement to your own notes, not as a substitute.dealt with twins and adoptive research, and studied two children, one genetic and one adopted, and how many traits they retained from their parents. Schizophrenia was also studied as a genetic trait, where a danish study was done to take an adopted child, track down their parents, interview and study the parents biology, and if the parents were schizophrenic, then the child was more likely to be schizophrenic. III. EvolutionEvolution is the interaction of genes and the environment over time. The roles of evolution in the human community are biological adaption, individual adaption, and cultural adaption. Two scientists who are critical to the understanding of evolution are Mendel and Lyell. Evolution is not a teleology, and it is not a process of things better and better. In evolution, trends in one direction can shift back the other way, should environmental conditions change. Lastly, organisms are not “higher” and “lower” depending on how much change has occurred. Behavior is susceptible to evolution just as physical characteristics


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BU PSYC 111 - Nature Vs. Nurture Part 2

Type: Lecture Note
Pages: 2
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