PSY 1102 Chapter Notes - Chapter 4: Frontal Lobe, Nucleolus, Fetus

• School: University of Ottawa
• Department: Psychology
• Course: PSY 1102
• Professor: Rosalinde Klempan

Document Summary

This chapter tells the complex story of how our genes (nature) and environments (nurture) define us. They study our differences and weigh the effects and interplay of heredity and environment. Humans inherit 23 from each parent (get 23 pairs or 46 in total) The molecule containing genetic information in templates for the production of proteins. Molecule form is double helix (discovered by: watson and k. We look and find the gene in the cell within the nucleolus. They can either be active (expressed) or inactive. Twin and adoption studies tell us that heredity influences body weight, but there is no single obesity gene . Twin studies: method used by behavior geneticists, compare trait and behavior similarities of types of twins. Psy1102: is you have a sibling they share 50% of your genes with them. Identical twins: develop from a single fertilized egg (egg divides in two, identical genes, they are of the same sex.