Term
|
Definition
the study of the relative power and limits of genetic and environmental influences on behavior |
|
|
Term
|
Definition
every nongenetic influence, from prenatal nutrition to the people and things around us |
|
|
Term
|
Definition
threadlike structures made of DNA molecules that contain the genes |
|
|
Term
DNA (deoxyribonucleic acid) |
|
Definition
a complex molecule containing the genetic information that makes up the chromosomes |
|
|
Term
|
Definition
the biochemical units of heredity that make up the chromosomes; segments of DNA capable of synthesizing a protein |
|
|
Term
|
Definition
the complete instructions for making an organism, consisting of all the genetic material in that organism's chromosomes |
|
|
Term
|
Definition
twins who develop from a single fertilized egg that splits in two, creating two genetically identical organisms |
|
|
Term
|
Definition
twins who develop from separate fertilized eggs. they are genetically no closer than brothers and sisters, but they share a fetal environment |
|
|
Term
|
Definition
the proportion of variation among individuals that we can attribute to genes. The heritability of a trait may vary, depending of the range of populations and environments studied |
|
|
Term
|
Definition
the interplay that occurs when the effect of one factor (such as environment) depends on another factor (such as heredity) |
|
|
Term
|
Definition
the subfield of biology that studies the molecular structure and function of genes |
|
|
Term
|
Definition
the study of the roots of behavior and mental processes using the principles of natural selection |
|
|
Term
|
Definition
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 |
|
|
Term
|
Definition
a random error in gene replication that leads to a change |
|
|