PSYA01H3 Chapter 3: Chapter 3 Notes
Document Summary
Heredity and behaviour: genetics influence both the brain and one"s behaviour. The genetic code: found in the nucleus of most of our cells, genetic material is organized into genes. Dna (deoxyribonucleic acid): a molecule formed in a double-helix shape that contains four nucleotides: adenine, cytosine, guanine, and thymine: each gene is a unique combination of these four nucleotides. Phenotype: the physical traits or behavioural characteristics that show genetic variation (i. e. eye colour, personality: develops because of differences in nucleotide sequencing a well as through interactions with the environment, genes are organized in pairs along chromosomes. In some cases, an extra chromosome (trisomy) is present and alters the genetic makeup as well as the phenotype of the individual. If two corresponding genes at a given location on a pair of chromosomes are the same, they are referred to as homozygous. Behavioural genetics: the study of how genes and the environment influence behaviour.
