A hospital reviews anonymised records to investigate whether a particular allele is associated with a disease.
| DNA result | Developed the disease | Did not develop the disease |
|---|---|---|
| Allele present | 18 | 82 |
| Allele absent | 24 | 376 |
Explain how the findings could be used to guide medical care, and why they cannot predict with certainty whether an individual will develop the disease. Use the data in your answer.
96 exam-style questions on Edexcel GCSE Biology 3.4 Variation and the Human Genome Project, covering 3.4.1 Causes of variation, 3.4.2 Outcomes of the Human Genome Project, 3.4.3 Genetic variation within a population, and 3.4.4 Effects of genetic mutations on phenotype. Each one has a worked solution and a mark scheme showing where the marks go.