biological approach pt1

• genotype- 


  The inherited alleles/genes an individual has
• Phenotype-


  The displayed characteristic.
• assumptions of the approach-

  • the belief that behaviour and mental processes are influenced by genetics, brain structure and function, and the nervous system

  It looks at the following biological factors when explaining behaviour:

  1. The genetic basis of behaviour
  2. The influence of changes on chemicals(hormones, neurotransmitters) on behaviour
  3. Darwin's ideas about evolution and how it affects human behaviour
• what is the concordance rate?


  The concordance rate is the percentage of pairs of individuals in a study that both have a particular trait or condition.
• Biological Approach - the idea that behaviour is caused by biology, such as genetics or brain chemistry.
• Monozygotic twins- share 100% genes
• Dyzygotic twins- share 50% genes.