PSY 1102 Study Guide - Prenatal Nutrition, Heredity, Mutation
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PSY 1102 Full Course Notes
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Behaviour genetics: the study of the relative power and limits of genetic and environmental influences on behavior. Environment: every nongenetic influence, from prenatal nutrition to the people and things around us. Chromosomes: threadlike structures made of dna molecules that contain the genes. Dna: (deoxyribonucleic acid) a complex molecule containing the genetic information that makes up the chromosomes. Genes: the biochemical units of heredity that make up the chromosomes; a segment of. Genome: the complete instructions for making an organism, consisting of all the genetic material in that organism"s chromosomes. Identical twins: twins who develop from a single (monozygotic) fertilized egg that splits in two, creating two genetically identical organisms. Fraternal twins: twins who develop from separate (dizygotic) fertilized eggs. They are genetically no closer that brothers and sisters, but they share a fetal environment. Temperament: a person"s characteristic emotional reactivity and intensity. Molecular genetics: the subfield of biology that studies the molecular structure and function of genes.