PSY100H1 Chapter 3: Chapter 3 Biological Foundations.docx
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PSY100H1 Full Course Notes
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Document Summary
Modern technology and understanding allows for manipulation of genes. Genes are not strictly a determinant of behavior, but the environment, which activates genes, is major as that is how some genes are expressed. Genome is master blueprint that provides instruction to grow everything. Genome provides options for possible things to happen, environment activates. Within each cell are 23 chromosomes, structures made of genes. Gene is segment responsible for making a protein which carries out a task. Environment determines when and which proteins are made. As found in genome proj, humans don"t have most # of genes, but we do have more way in expressing genes. Comparing of genomes between people helps identify responsible genes for different things. 3:1 ratio of dominant over recessive when crossing two heterozygotes. Gentype is the genetic constitution, why the phenotype(genetic and environmental influence) is the physical expression of the genotype, but not all genes are expressed as seen in the recessive nature of genes.
