PSYC 100 Lecture Notes - Lecture 3: Behavioural Genetics, Physical Attractiveness, Opportunity Cost

• School: Queen's University
• Department: Psychology
• Course: PSYC 100
• Professor: Jill L Atkinson

Document Summary

There is a dominant gene in a heterozygous pair and there is a recessive gene in homozygous. Twin studies: monozygotic (identical) twins (mz, dizygotic twins (fraternal) (dz) Adoption studies: can do it with both mz and dz twins and compare the rates. Behavioural genetics: psychologists who study this, specialize in the relationship between genetics and behaviour, e. g. Sexual reproduction: genetic material from male and female combine and the genetic material (dna) is organized into chromosomes that are in the nucleus of every cell, chromosomes come in pair with each pair being one parent. Genes and alleles: genes: regions of the chromosomes that encode particular proteins. If they are the same they are homozygous if not, Heterozygous : 2 genes at a locus: alleles. One from the father, one from the mother. If they are different, one often has a dominant effect over the other. Monozygotic and dizygotic twins: identical twins: monozygotic.