PSY 001 Chapter Notes - Chapter 4: Psy, Developmental Psychology, Heredity
21 Sep 2020
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Behavior genetics: the study of the relative power and limits of genetic and environmental influences on behavior. Genes: the building block of heredity and development. Parts of dna molecules which are found in chromosomes in the nuclei of cells. Human genome: 46 chromosomes- 23 matched sets, each chromosome has same gene locations (23 from mom/dad) Human genome: 20, 000- 25, 000 genes (genome: an organisms entire collection of genes) Human genomes are so nearly identical that we can speak of one universal human genome. Yet tiny genetic differences make a difference. 001 percent difference in genome between people: 0. 5 to 4 percent difference in genome between humans and chimpanzees, 50 percent difference in genome between humans and bananas. Have ability to direct the assembly of proteins that build the body. This genetic protein assembly can be turned on/off by environment or by other genes.
