| Date | May 2012 | Marks available | 2 | Reference code | 12M.3.SL.TZ1.18 |
| Level | Standard level | Paper | Paper 3 | Time zone | Time zone 1 |
| Command term | Outline | Question number | 18 | Adapted from | N/A |
Question
Gene therapy is a new technology which can be used to treat hereditary diseases.
Outline two risks of gene therapy.
Markscheme
undesired effects e.g. cancer/death;
virus may infect cells other than the target cells;
inserted gene may disrupt vital genes already in the genome;
virus entry may trigger an immune response;
treatment must be repeated at regular intervals and all medical treatments carry risk;
Examiners report
N/A
Syllabus sections
Option B: Biotechnology and bioinformatics » Option B: Biotechnology and bioinformatics (Additional higher level topics) » B.4 Medicine
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