Chapter 3: Nature Nurture & Human Diversity Flashcards
behavior genetics
studies the effects of genes and environments on individual differences in behavior and mental processes
evolutionary psychology
study of behavior, emotions, and thinking that allowed our ancestors to survive and pass on genes
NATURAL SELECTION
environment
every no genetic influence, from prenatal nutrition to the people and things around us
chromosomes
threadlike structures made of DNA molecules that contain genes
DNA
a complex molecule containing the genetic info that make up the chromosomes
genes
the biochemical unit of heredity that make up the chromosomes; a segment of DNA capable of synthesizing a protein
genome
the complete instructions for making an organism, consisting of all the genetic material in that organisms chromosomes
identical twins
twins who develop from a single fertilized egg that splits into two creating two genetically identical organisms
fraternal twins
twins who develop from separate fertilized eggs that are genetically no closer than brothers and sisters
temperament
a persons characteristic emotional reactivity and intensity
heritability
the proportion of variation among individuals that we can attribute to genes. The heratibility of a trait may vary depending on range of populations and environments studied
interaction
the effect of one factor depends on another factor
molecular genetics
the subfield of biology that studies the molecular structure and function of genes
natural selection
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
mutation
a random error in gene replication that leads to a change
gender
in psychology, the biologically and socially influenced characteristics by which people define make and female
culture
The enduring behavior, ideas, attitudes, values, and traditions shared by a group of people and transmitted from one generation to the next
norm
an understood rule for accepted and expected behavior. Norms prescribe proper behavior
personal space
the buffer zone we like to maintain around our bodies
individualism
giving priority to one’s own goals over group goals and defining one’s identity in terms of personal attributes rather than group identifications
collectivism
giving priority to the goals of one’s group (often ones extended family or workgroup) and defining one’s identity accordingly
X chromosome
The sex chromosome found in both men and women. females have two X chromosomes and males have one. An X-chromosome from each parent produces a female child
Y chromosome
The sex chromosome found only in males
role
a set of expectations about a social position defining how those in the position ought to behave
gender role
A set of expected behaviors for males and for females
gender identity
ones sense of being male or female
gender typing
The acquisition of a traditional masculine or feminine role
social learning theory
The theory that we learn social behavior by observing and imitating and by being rewarded or punished
gender schema theory
The theory that children learn from their cultures a concept of what it means to be male and female and that they adjusted behavior accordingly