PSYA01H3 Chapter Notes - Chapter 3: Heritability, Extraterrestrial Places In The Cthulhu Mythos, Baic Group
Document Summary
3. 1 - genetic and evolutionary perspectives on behaviour. Are the basic units of heredity; they are responsible for guiding the process of creating the proteins that make up our physi cal structurs and regulate development and physiological processes throughout the life span. Are structures in the cellular nucleus that are lined with all of the genes an individual inherits. A molecule formed in a double-helix shape that contains 4 amino acids: adenine, cytosine, guanine, thymine - acgt. Refers to the genetic makeup of an organism. The unique set of genes that compose every chromosome represents the genotype of the individual. Consists of the observable characteristics, including physical structures and behaviours. If 2 corresponding genes at a given location on a pair of chromosomes are the same, they are homozygous. If the two genes differ, they are heterozygous. Whether a trait is expressed depends on which combination of pairs is inherited (dominant + recessive gene)
