PSYC 3404 Chapter Notes - Chapter 2: Cognitive Deficit, Sandra Scarr, Umbilical Cord
10 Apr 2018
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Dna: makes up chromosomes, stores and transfers genetic info. Incomplete dominance: phenotype is influenced mostly by dom, but some recessive. Y chromosome= smaller; only of genetic material. X-linked inheritance: expression of recessive characteristic b/c it is on male"s x chromosome. Some cultures have a large bias for male children. Behavior genetics: study how much genes affect behavior. Heritability: estimate of how much genes affect the differences between people in a population. Scale: 0-1. 00; higher number the more the characteristic is believed to be influenced by genes. Concordance rate: degree of similarity in phenotype among a pair of family members; expressed as a percentage. Epigenesis: development is from bidirectional interaction between genotype and environment. Reaction range: range of possible developmental paths established by genes; environment determines where development takes place in the range. Theory of genotype environment: genes influence the environment we experience. Three forms of the theory of genotype environment.
