Chapter 4 (A): Behavior Genetics

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Presentation transcript:

Chapter 4 (A): Behavior Genetics A.P. Psychology

Place your 3-D Brain Model & Key on your desk to be collected. Do-Now Place your 3-D Brain Model & Key on your desk to be collected.

Do-Now (In Journal) List 10 physical, mental, and/or emotional characteristics that you share with your biological family members. Identify which family members you share each trait with.

Demonstration: Genetics Fold your hands together (interlocking your fingers). Do you place your left or right thumb on top of the other? Switch the position of your fingers, such that your opposite thumb is now on top. How does this feel?

Behavior Genetics Behavior Genetics: Environment: The study of the relative power and limits of our genetic and environmental influences on behavior Environment: Every non-genetic influence, from prenatal nutrition to the people and things around us

What is the purpose of Behavior Genetics in Psychology?

Genes: Our Codes for Life Chromosomes: Threadlike structures made of DNA molecules that contain genes DNA (Deoxyribonucleic Acid): A complex molecule containing the genetic information that makes up the chromosomes

Human DNA Shared with Other Organisms Humans share much of their DNA with other organisms: Identical Twins: 100% Parents/Children: 99.5% Other Humans: 99% Chimpanzees: 98% Fruit Fly: 60% Banana: 50%

Genes: Our Codes for Life The biochemical units of heredity that make up the chromosomes Segments of DNA capable of synthesizing a protein Genome: The complete instructions for making an organism Consists of all the genetic material in that organism’s chromosomes

The Human Cell & Genetics

Genes: Our Codes for Life “Your DNA and mine are 99.9% the same.. At the DNA level, we are clearly all part of one big worldwide family.” Francis Collins, Human Genome Project director, 2007 “We share half our genes with the banana.” Evolutionary biologist, Robert May, president of Britain’s Royal Society, 2001

Review What is Behavior Genetics? What is its significance in Psychology? Differentiate between the following: Chromosomes DNA (Deoxyribonucleic Acid) Genes

Homework Chapter 4 Outline: “Nature, Nurture, and Human Diversity” Research Study Response #3: “Are You a ‘Natural?’”(Pgs. 19-27) Chapter 4 Quiz: “Nature, Nurture, and Human Diversity” Unit 3 Test: “Biological Bases of Behavior” Chapter 6 Outline: “Sensation and Perception” Unit 3 Project: “3-D Brain Model”