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Psych Vocab Ch. 3
Vocabulary for AP Psychology Chapter Three
Question | Answer |
---|---|
chromosomes | threadlike structures made of DNA molecules that contain the genes |
DNA | a complex molecule containing the genetic information that makes up the chromosomes. |
genes | the biochemical units of heredity that make up that 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 its chromosomes. The human genome has 3 billion weakly bonded pairs of nucleotides organized as coiled chains of DNA |
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 in the sequence of nucleotides; the source of all genetic diversity |
evolutionary psychology | the study of the evolution of behavior and the mind, using principles of natural selection. |
gender | in psychology, the characteristics, whether biologically or socially influenced, by which people define male and female |
behavior 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 |
identical twins | twins who develop from a single fertilized egg that splits in two, creating two genetically identical organisms |
fraternal twins | twins who develop from separate eggs. They are genetically no closer than brothers and sisters, but they share a fetal environment |
temperament | a person's characteristic emotional reactivity and intensity |
heritability | the proportion of variation among individuals that we can attribute to genes. The heritability of a trait may vary, depending on the range of populations and environments studied |
interaction | the dependence of the effect of one factor (such as environment) on another factor (such as heredity) |
molecular genetics | the subfield of biology that studies the molecular structure and function of genes |
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 |
memes | self-replicating ideas, fashions, and innovations passed from person to person |
X chromosome | the sex chromosome found in both men and women. Females have two X chromosomes; males have one. An X chromosome from each parent produces a female child. |
Y chromosome | the sex chromosome found only in males. when paired with an X sex chromosome from the mother, it produces a male child. |
testosterone | the most important of the male sex hormones. Both males and females have it, but the additional testosterone in males stimulates the growth of the male sex organs in the fetus and the development of the male sex characteristics during puberty |
role | a set of expectations (norms) about a social positition, defining how those in the position ought to behave |
gender role | a set of expected behaviors for males and for females |
gender identity | one's 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 whta it means to be male and female and that they adjust their behavior according;y |