Nature, Nurture, & Human Diversity (Modules 10 and 12) Flashcards
The study of the relative power and limits of genetic and environmental influences on behavior
Behavioral Geneticists
The genetic transfer of characteristics from parents to offspring
Heredity
Every nongenetic influence, from prenatal nutrition to the people and things around us
Environment
Threadlike structures made of DNA molecules that contain the genes
Chromosome
A complex molecule containing the genetic information that makes up the chromosomes
DNA (deoxyribonucleic acid)
The biochemical units of heredity that make up the chromosomes; small segments of DNA capable of synthesizing proteins
Genes
The complete instructions for making an organism, consisting of all the genetic material in that organism’s chromosomes
Genome
Individuals who developed from a single fertilized egg that split in two, creating two genetically identical organisms
Identical (monozygotic) Twins
Individuals who developed from separate fertilized eggs. They are genetically no closer than ordinary siblings, but shared a prenatal environment
Fraternal (dizygotic) Twins
A person’s characteristic emotional reactivity and intensity
Temperament
The proportion of variation among individuals in a group that we can attribute to genes. The heritability of a trait may vary, depending on the range of populations and environments studied
Heritability
The interplay that occurs when the effect of one factor (such as environment) depends on another factor (such as heredity)
Interact
The subfield of biology that studies the molecular structure and function of genes
Molecular Genetics
The study of how the structure and function of genes interact with our environment to influence behavior
Molecular Behavior Genetics
“Above” or “in addition to” (epi) genetics; the study of the molecular mechanisms by which environments can influence genetic expression (without a DNA change)
Epigenetics