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11 Cards in this Set

  • Front
  • Back
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
chromosomes
threadlike structures made of DMA molecules that contain genes
DNA
complex molecule containing the genetic information that makes us chromosomes
genes
the biochemical units of heredity that make up the 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 that organisims chromosomes
identical twins
twins who develop from a single fertilized egg that splits in two, creating two genetically identical organisims
fraternal twins
twins who develop from separate fertilized eggs. They are genetically no closer than brothers and sisters, but they share a fetal environment
temperament
a persons characteristic emotional reactivity and intensity
interaction
the interplay that occurs when the effects of one factor (such as environment) depends on another factor (such as heredity)
molecular genetics
the subfield of biology that studies the molecular structure and function of genes