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PSYCH 101 Mod 11
Terms in this set (14)
the study of the relative power and limits of genetic and environmental influences on behavior.
the complete instructions for making an organism, consisting of all the genetic material in that organism's chromosomes.
DNA (deoxyribonucleic acid)
a complex molecule containing the genetic information that makes up the chromosomes.
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.
the study of environmental influences on gene expression that occur without a DNA change.
fraternal twins (dizygotic twins)
develop from separate fertilized eggs. They are genetically no closer than ordinary brothers and sisters, but they share a prenatal environment.
the biochemical units of heredity that make up the chromosomes; segments of DNA capable of synthesizing proteins.
threadlike structures made of DNA molecules that contain the genes.
every nongenetic influence, from prenatal nutrition to the people and things around us.
identical twins (monozygotic twins)
develop from a single fertilized egg that splits in two, creating two genetically identical organisms.
the interplay that occurs when the effect of one factor (such as environment) depends on another factor (such as heredity).
molecular behavior genetics
the study of how the structure and function of genes interact with our environment to influence behavior.
the subfield of biology that studies the molecular structure and function of genes.
a person's characteristic emotional reactivity and intensity.
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