Psychology 2550A/B Chapter Notes - Chapter 5: Human Genome Project, Twin Study, Regulatory Sequence

• School: Western University
• Department: Psychology
• Course: Psychology 2550A/B
• Professor: David Vollick

Document Summary

Behavior genetics studies role of genes in social behavior and personality. Genetic heritage of each human contained in large molecule called dna (deoxyribonucleotides); 23 pairs of chromosomes. Dna is long string of small units called nucleotides, w/ four types: a, t, g, c. Human genome complete set of nucleic acid sequences (four letters) for humans. All trillion cells in human body house w/in nucleus complete and identical sequence of. Dna, each containing about 1. 5gb of genetic info (would fill roughly two cd-roms) Gene region of dna that influences particular characteristic in organism, and is unit of heredity; typically contain stretch (or stretches) of dna that specify structure of protein to be made. Chapter 5: regulatory sequences stretch which control whether or not, and how much of, protein is made. Sometimes different proteins made based on same gene, determine by interaction b/w cellular environment (what"s going on inside cell) and regulatory sequence.