PSYCH 1100 Lecture Notes - Lecture 20: Autism Spectrum, Twin, Genetic Variation

• School: Ohio State University
• Department: Psychology
• Course: PSYCH 1100
• Professor: Victoria Chavez

Document Summary

A feature of an allele that only produces a phenotype in the homozygous condition. A feature of an allele that determines a phenotype in either the homozygous or the heterozygous condition. Only 1 of 2 needed to express phenotype. The probability that 2 people share the same allele from a common ancestor. Men or boys are more susceptible to x-linked genes. The scientific field that attempts to identify and understand links between genetics and behavior. Misconception: we can identify a gene for a particular behavior. The statistical likelihood that variations observed in a population are because of genetics. Usually presented as a ration of the amount of variation observed in a population. Talks about a population not an individual person. If we were all in the same environment, we could more easily see what is heredible and what is environment based. Ex: a trait such as shyness is 40% heritable.