Ch.8: Behavior Genetics And Evolutionary Psychology

Front 1

the study of the relative power and limits of genetic and environmental influences on behavior.

Back 1

behavior genetics

Front 2

every nongenetic influence, from prenatal nutrition to the people and things around us.

Back 2

environment

Front 3

threadlike structures made of DNA molecules that contain the genes.

Back 3

chromosomes

Front 4

a complex molecule containing the genetic information that makes up the chromosomes.

Back 4

DNA (deoxyribonucleic acid)

Front 5

the biochemical units of heredity that make up the chromosomes; a segment of DNA capable of synthesizing a protein.

Back 5

genes

Front 6

twins who develop from a single fertilized egg that splits in two, creating two genetically identical organisms.

Back 6

identical twins

Front 7

twins who develop from separate fertilized eggs. They are genetically no closer than brothers and sisters, but they share a fetal environment.

Back 7

fraternal twins

Front 8

a person’s characteristic emotional reactivity and intensity.

Back 8

temperament

Front 9

the interplay that occurs when the effect of one factor (such as environment) depends on another factor (such as heredity).

Back 9

interaction

Front 10

the study of the roots of behavior and mental processes, using the principles of natural selection.

Back 10

evolutionary psychology

Front 11

the principle that, among the range of inherited trait variations, those that lead to increased reproduction and survival will most likely be passed on to succeeding generations.

Back 11

natural selection

Front 12

a random error in gene replication that leads to a change.

Back 12

mutation

Front 13

in psychology, the biologically and socially influenced characteristics by which people define male and female.

Back 13

gender