Mod 5 Flashcards
the study of the relafive power and limits of genetic and environmental influences on behavior.
behavior genetics
threadlike structures made of DNA molecules that contain the genes.
Chromosomes
a complex molecule containing the genetic information that makes up the chromosomes.
DNA deoxyribonucleic acid
the biochemical units of heredity that make up the chromosomes; segments of DNA capable of synthesizing proteins.
Genes
twins who develop from a single (monozygotic) fertilized egg that splits in two, creating two genetically identical
organisms.
Identical twins
twins who develop from
separate (dizygotic) fertilized eggs. They are
no closer than ordinary brothers and sisters but they share a fetal environment.
Fraternal twins
the interplay that occurs when
the effect of one factor (such as environment)
depends on another factor (such as heredity).
Interaction
the study of environmental
influences on gene expression that occur with out a DNA change.
Epigenetics
the study of
the evolution of behavior and the mind, using
principles of natural selection.
Evolutionary psychology
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.
Natural selection
every nongenetic influence,
horn prenatal nutrition to the people and things
around us.
environment