01:830:101 Lecture Notes - Lecture 10: Mutation, Heritability, Observational Error

• School: Rutgers University
• Department: Psychology
• Course: 01:830:101
• Professor: Professor Marvasti

Document Summary

Chromosomes: threadlike structures made of dna molecules that contain the genes. Deoxyribonucleic acid (dna: a complex molecule containing the genetic information that makes up the chromosomes. Genes: the biochemical units of heredity that make up the chromosomes; segments of dna capable of synthesizing a protein. Genome: the complete instructions for making an organism, consisting of all the genetic material in that organism"s chromosomes. Identical twins: twins who develop from a single fertilized egg that splits in two, creating two genetically identical organisms. Fraternal twins: twins who develop from separate fertilized eggs. They are genetically no closer than brothers and sisters, but they share a fetal environment. Heritability: the proportion of variation among individuals that we can attribute to genes. This may vary, depending on the range of populations and environments studied. Interaction: the interplay that occurs when the effect of one factor (such as environment) depends on another factor (such as heredity).