PSYC 250 Chapter Notes - Chapter 2-3: Epigenetics, Heritability, Allele
17 Mar 2019
School
Department
Course
Professor
Document Summary
Phenotype: the characteristics derived from the genotype (caused by the environment: one of the forms of a gene, most genes have two, a dominant and a recessive one. A pair of chromosomes contains one dominant and one recessive gene, but only the dominant one is expressed in the phenotype. A form of dominant-recessive inheritance where the phenotype is influences by both the dominant and recessive genes. Phenotype is expressed due to an interaction of multiple genes. A recessive gene is expressed because it is carried on the x chromosome. The proportion of variance within a trait that can be attributed to genetic factors. The study of how genetic activity responds to environmental influences. Proteins that sit on top of the gene and affect whether or not the gene is active: people can inherit genetic markers, can be caused by environmental factors. The range of possible developmental paths established by genes: environment determines where development takes place within that range.
