Lab Rats
The study of the relative power and limits of genetic and environmental influences on behavior
What is behavior genetics?
Every nongenetic influence, from prenatal nutrition to the people and things around us
What is the environment?
DNA is short for …
What is deoxyribonucleic acid?
These develop from a single fertilized egg that splits in two, creating two genetically identical organisms
What are identical twins?
The study of the evolution of behavior and the mind, using principles of natural selection
What is evolutionary psychology?
A random error in gene replication that leads to a change
What is a mutation?
The biochemical units of heredity that make up the chromosomes; segments of DNA capable of synthesizing proteins
What are genes?
These develop from separate fertilized eggs
What are fraternal twins?
The subfield of biology that studies the molecular structure and function of genes
What is molecular genetics?
A person’s characteristic emotional reactivity and intensity
What is temperament?
A complex molecule containing the genetic information that makes up the chromosomes
What is DNA?
Technical term for fraternal twins
What are monozygotic twins?
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
The interplay that occurs when the effect of one factor (such as the environment) depends on another factor (such as heredity)
What is interaction?
Threadlike structures made of DNA molecules that contain the genes
What are chromosomes?
Technical term for identical twins
What are dizygotic twins?
The study of environmental influences on gene expression that occur without a DNA change
What is epigenetic?
The proportion of variation among individuals that we can attribute to genes
What is heritability?
The complete instructions for making an organism, consisting of all the genetic material in that organism’s chromosomes
What is a genome?
Who are Jim Lewis & Jim Lewis; friars Julian and Adrian; bank robbers; Lorraine and Levinia Christmas (crashed); Drew and Jonathan Scott?
Any twins mentioned in Module 11