Bipedalism is the ability to walk upright. Another important evolutionary milestone was the acquisition of language. Language is the basis for cultural evolution, which allows for the transmission of knowledge across generations. Genes and Behavior Genetics is the study of the inheritance of physical and psychological traits from ancestors. Chromosomes are copied and stored in germ cells.
Sex chromosomes contain genes that code for male or female anatomy.
Behavior genetics is a relatively new field uniting geneticists and psychologists interested in determining the genetic basis of behavioral traits and functioning. Brain Structures and Functions A. Brain Research 1. The Mind-Body Problem. Brain scans are mechanical and electronic measurements of biochemical and electrical activity at specific brain sites. The Organization of the Brain.