Psychology 1000 Chapter Notes - Chapter 4: Twin, Twin Study, Heritability

• School: Western University
• Department: Psychology
• Course: Psychology 1000
• Professor: Mark Cole

Document Summary

Genetic endowment combines environmental forces to determine our behavior. Favorable and unfavorable environmental conditions affect the genetically inherited potential of an organism. Hipporcrates suggested that semen contains the design for the formation of offspring. Genotype: the specific genetic makeup of an individual. Some of the directives are used on one occasion and some on another. Some of the directives are never used. These are present from conception and never change. Phenotype: the observable characteristics produced by the genetic endowment. Can be affected by other genes and by the environment. Chromosomes: eggs and sperm carry the material of a hereditary in the form of rod like units. It is a tightly coiled molecule of dna that is partly covered by a protein. Genes are like a computer of info about your characteristics and limitations. Alleles are alternative forms of a gene that produce different characteristics. Dominant: the particular characteristic that it controls will be displayed.