PSYB32H3 Lecture 3: PSYB20 - Lecture 3.docx
Document Summary
Behaviour genetics: genetics, heredity, environment each has the power to alter the course of development, contributions of nature and nurture to human traits. Researchers agree that genes and the environment are both equally involved in development. All attributes are influenced by the environment in which they express themselves: polygenetic traits, the question of how much . The point is that they interact, how much is not important. Focuses on organisms as they develop and questions related to behaviour. Emerges through interactions with genotype and the environment. Joint function of genes and the environment: genetic influences make inferences on genotypes rather than on the observable phenotypes. Slide 3 genes, the organism, and the environment. Variations in any level of the environment can have an impact on the development of the organism; can have an effect on the phenotype: experiments on the himalayan rabbit. Took white fur off the rabbit s back, placed an ice pack on it, fur grew back black.