Psyc Chap. 3

Front 1

environment

Back 1

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

Front 2

behavior genetics

Back 2

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

Front 3

chromosomes

Back 3

theadlike structures made of DNA molecules that contain the genes

Front 4

DNA

Back 4

deoxyribonucleic acid a complex molecule containing the genetic information that makes up the chromosomes

Front 5

genes

Back 5

the biochemical units of heredity that makeup the chromosomes; a segment of DNA capable of synthesizing a protein

Front 6

identical twins

Back 6

twin who develop form a single fertilized egg that splits in two, creating two genetically identical organisms

Front 7

fraternal twins

Back 7

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

Front 8

temperament

Back 8

a person's characteristic emotional reactivity and intensity

Front 9

interaction

Back 9

the effect of one factor (such an environment) depends on another factor (such as heredity)

Front 10

evolutionary psychology

Back 10

the study of the evolution of behavior and the mind, using principles of natural selection

Front 11

natural selection

Back 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 the succeeding generations.

Front 12

mutation

Back 12

a random error in gene replication that leads to a change

Front 13

gender

Back 13

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

Front 14

culture

Back 14

the enduring behaviors, ideas attitudes, values, and traditions shared by a group of people and transmitted from one generation to the next

Front 15

norm

Back 15

and understood rule for accepted and expected behavior. Norms prescribe "proper" behavior