AP Psychology unit 3c

Behavior genetics
the study of the relative power and limits of genetic and environmental influences on behavior
environment
every non-genetic influence, from prenatal nutrition to the people and things around us
chromosomes
threadlike structures made of DNA molecules that contain the genes
DNA
a complete molecule containing the genetic information that makes up the chromosomes
Genes
A complex molecule that make up the chromosomes; segments of DNA capable of synthesizing a protein
genome
the complete instructions for making an organism, consisting of all the genetic material in that organism’s chromosomes
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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 fertilized eggs. they are genetically no closer than brothers and sisters, but they share a fetal environment
heritability
the proportion of variation among individuals that we can attribute to genes. this may vary, depending on the range of populations and environments studied
interaction
the interplay that occurs when the effect of one factor depends on another factor
molecular genetics
the subfield of biology that studies the molecular structure and function of genes
evolutionary psychology
the study of the roots of behavior and mental processes using the principles of natural selection
natural selection
the principle that, among the range of inherited trait variations, those contributing to reproduction and survival will most likely be passed on to succeeding generations
mutation
a random error in gene replication that leads to a change
one major criticism of the evolutionary perspective in psychology
it analyzes after the fact using hindsight
evolutionary psychologists seek to understand how traits and behavioral tendencies have been shaped by
natural selection
which of the following is not one of the main criticisms of the evolutionary psychology explanation of human sexuality
this perspective discounts important genetics influences
thomas bouchard’s study of twins is notable, because
he discovered almost unbelievable similarities between adult identical twins who had been separated near birth
the extent to which variation among members of a group can be attributed to genes is called
heritability
your genetic code
exists in its entirety in every cell of your body
which of the following statements has been supported by the research of evolutionary psychologists
men are attracted to women who appear fertile and capable of bearing children
which of the following is as example of a phenomenon that could be explained by natural selection
women tend to seek men who can provide protection for their children because this has increased the survival rate of children in the past
when the mother’s egg and the father’s sperm unite, each contributes
23 chromosomes
researchers find the study of fraternal twins important because,
they are the same age and are usually raised in similar environments, but they do not have the same genetic code
heritability refers to the percentage of
group variation in a trait that can be explained by genetics
threadlike structures made of dna molecules that contain the genes are called
chromosomes
the study of specific genes and teams of genes that influence behavior is called
molecular genetics
the interplay of environment and heredity is called
interaction
in an effort to reveal genetic influences on personality, researchers use adoption studies mainly to
evaluate whether adopted children more closely resemble their adoptive parent or their biological parents