Psychology 1000 Lecture Notes - Lecture 4: Polygynandry, Australopithecus, Homo Erectus

• School: Western University
• Department: Psychology
• Course: Psychology 1000
• Professor: Laura Fazakas-de Hoog

Document Summary

Genes: segments of dna that codes for a protein, and regulates every aspect of cell function. Genotype: the specific genetic makeup of an individual. Phenotype: the observable characteristic produced by that genetic endowment. Polygenic transmission: a number of gene pairs combine their influences to create a single phenotypic trait. 99. 9 % of genes in humans identical: however, zygotes can result in 70 trillion diff. phenotypes (diversity) Disassembled genes on chromosomes and studied sequence. 200 genes arisen from genes that bacteria inserted into our early ancestors. Identify whether a person has the specific genes that will result in certain diseases. ie huntington"s, breast cancer. Recombinant dna procedures: specific enzymes cut molecules of dna, combine them with dna from another organism, and insert the new strands into a host organism; ie bacterium. Knockout procedure: function of gene is eliminated and effects on behavior are observed. Cloning: production of one or more individual organisms that are genetically identical to another organism.