Behavioral Genetics, Epigenetics, and Heritability Flashcards
Behavioral Genetics
The study of familial or hereditary behavior patterns and of the genetic mechanisms of behavior traits.
Identical
The exact same
Fraternal
Each individual inheriting a random half of each parent’s genes.
Monozygotic
twins, always of the same sex, that develop from a single fertilized ovum (zygote) that splits in the early stages of mitosis to produce two individuals who carry the same complement of genes. Clones.
Dizygotic
Twins that are approximately half as genetically similar to one another as monozygotic twins.
Heritability
The capacity or possibility of a gene to be inherited.
Epigenetics
The study of heritable chemical modifications to DNA that alter gene activity without changing nucleotide sequence.