Psychology 1000 Chapter Notes - Chapter 4: Twin, Human Genome Project, Twin Study

• School: Western University
• Department: Psychology
• Course: Psychology 1000
• Professor: Terry Biggs

Document Summary

Identical twins jim springer and jim lewis both: Volunteer part time at local police office as part time sheriffs. Suffer from same headache syndrome while under stress. Only people in their neighbourhoods to build a circular bench around a tree. Similar in pattern of personality traits when given a series of tests. Biological characteristics set limits on our behaviour capabilities. Greek physician hippocrates suggested that semen contains some sort of design for formation of offspring rather than body parts. Showed heredity involves the passing on of specific organic factors. Can be affected by other genes and the environment. Ie chickens having the gene for teeth but the gene is suppressed. Chromosome tightly coiled molecule of dna with a protein coat. 46 chromosomes except sex cells which have 23. Estimated half of all genes target brain structure. Genes may be turned on or off depending on circumstances. As protein levels within a neuron changes there is a corresponding change in function.