Module 5 - Module 5 Genetic Influences on Behavior Genes Our Biological Blueprint A Chromosomes threadlike structures made of DNA molecules that

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Module 5: Genetic Influences on Behavior I Genes: Our Biological Blueprint A. Chromosomes threadlike structures made of DNA molecules that contain genes 1 DNA (Deoxyribonucleic Acid) a complex molecule containing the genetic information the makes up the chromosomes has 2 strands forming double helix held together by bonds between pairs of chromosomes 2 Genes biochemical units of heredity that make up chromosomes; segment of DNA capable of synthesizing a protein 3 Nucleotide biochemical letters that make up “alphabet of life” 4 Genome the complete instructions for making an organism, consisting of all the genetic material in its chromosomes. a Human genome has 3 billion weakly bonded pairs of nucleotides organized as coiled chains of DNA 5 gene complexes many genes acting in concert II Evolutionary Psychology: Maximizing Fitness A. Dmitry Belyaev 1 From offspring selected & mated tamest 5% of males & 20% of females, measuring 2 Over more than 30 generations later, Belyaev & successor Lyudmila Trut repeated procedure 3 45,000 foxes later, we have new breed that is docile B. Natural Selection 1 Natural selection principle that, among range of inherited trait variations, those that lead to increased reproduction and survival will most likely be passed on to succeeding generations 2 Mutation a random error in gene replication that leads to change in sequence of nucleotide; the source of all genetic diversity 3 Evolutionary psychology study of evolution of behavior & mind, using principals of natural selection. Natural selection has favored genes that designed both behavioral tendencies & information-processing systems that solved adaptive problems faced by our ancestors, thus contributing to the survival & spread of their
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This note was uploaded on 02/14/2008 for the course PSYCH 101 taught by Professor Barbagallo during the Fall '07 term at Montclair.

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Module 5 - Module 5 Genetic Influences on Behavior Genes Our Biological Blueprint A Chromosomes threadlike structures made of DNA molecules that

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