Biological Approach

Question 1

Biological Approach Assumptions

Answer 1

• Behaviour is determined by biological structures such as genes and the brain and biological chemicals such as neurotransmitters and hormones
• Everything psychological is at first biological

Question 2

Monozygotic Twins

Answer 2

Share 100% of their genes

Question 3

Dizygotic Twins

Answer 3

Share 50% of their genes
(Non Identical Twins)

Question 4

Genes

Answer 4

Sections of DNA that carry instructions for physical and psychological characteristics

Question 5

Role of Genes in Behaviour

Answer 5

Genes influence psychological traits like intelligence, aggression, and mental disorders.

Behaviour is believed to result from the interaction between genes (nature) and environment (nurture).

Question 6

Genotype

Answer 6

A persons actual genetic makeup. Its the particular set of genes that a person possesses.

Question 7

Phenotype

Answer 7

Is the way that genes are expressed through physical, behavioural and psychological characteristics.

Question 8

Concordance rates

Answer 8

Refers to the probability that two individuals share a certain behavioural trait.

Question 9

What is one real life example of the biological approach?

Answer 9

Research into biochemical processes in the brain has led to the development of psychoactive drugs that treat serious illnesses like depression. These drugs have revolutionised the treatment of mental illness for many. This means that many people suffering from mental illness can now have a normal life.

Question 10

What Does it Mean by the Genetic Basis of Behaviour?

Answer 10

Is the idea that certain behaviours, traits, and psychological characteristics such as intelligence and aggression are at least partly influenced by genes- inherited from our biological parents

Question 11

Evolution

Answer 11

Refers to change in inherited characteristics over generations known as adaptions

Question 12

Natural Selections

Answer 12

Any genetically determined behaviour which increases a species survival will be passes down to future generations.

Question 13

Evolutionary Advantage

Answer 13

A trait that improves the chance of passing on genes

Question 14

Adaptive Behaviour

Answer 14

Behaviour that helps an organism survive/reproduce

Question 15

What characteristics do biological and psychologists believe are adaptive?

Answer 15

intelligence and aggression

Question 16

Evolution Applied to Human Behaviour

Answer 16

Psychologists believe some human behaviours evolved because they were advantageous for survival or reproduction for example:

• Attachment and Social Releasers