Biological Approach

Question 1

Biological approach

Answer 1

Biological approach believes that behaviour is due to genes and the nervous system.
Twin studies are used to determine the likelihood that certain traits have a genetic basis by comparing the concordance rates between pairs of twins. Identical twins (100% same genes) have higher concordance rates than non identical twins (50% same genes).

Question 2

Monozygotic twins

Answer 2

Identical twins

Question 3

Dizygotic twins

Answer 3

Non identical

Question 4

Genotype

Answer 4

The particular set of genes that a person possesses.

Question 5

Phenotype

Answer 5

The characteristics of an individual determined by both genes and the environment.

Question 6

Evolution

Answer 6

The changes in inherited characteristics in a biological population over successive generations. (Darwin- natural selection)

Question 7

Biological approach evaluation

Answer 7

Uses precise and highly scientific methods (fMRI’s, twin studies).- reliable data.
Real life application- increased understanding of biochemical processes in the brain led to the development of psychoactive drugs- depression.
Can’t separate nature and nurture- they are brought up in the same environment.