biological explanations - genetics ao3

Question 1

methodological issues

Answer 1

• family, twin and adoption studies = considered cautiously = diagnosis may be biased by knowledge that other family members who may have been diagnosed.
• problems of demand characteristics

Question 2

nature v nurture

Answer 2

• difficult to separate the influence of nature v nurture
• concordances rates aren’t 100% for identical twins = schiz cant be wholly explained by genes
• an individual may have a predisposition = that makes the individual more at risk
• biological account cannot give a full explanation

Question 3

biologically reductionist

Answer 3

• genome project = increased understanding of the complexity of the gene = there are less genes than anticipated = genes have multiple functions
• gene mapping = oversimplistic as schiz is not due to a single gene