Amara and Jasmine are monozygotic (identical) twins who were raised in the same household and attended the same school. During their final year at university, both completed a clinical assessment measuring trait anxiety. Despite their identical upbringing, Amara's score indicated exceptionally low trait anxiety, whereas Jasmine's score indicated high trait anxiety.
Use your knowledge of genotype and phenotype to explain this difference in their anxiety levels.
48 exam-style questions on AQA A Level Psychology Biological approach. Each one has a worked solution and a mark scheme showing where the marks go.