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Complete the sentence about cancer - OCR Gateway - GCSE Biology (Combined Science) - Question 15 - 2020 - Paper 8
Question 15
Complete the sentence about cancer. Cancer is the result of changes in cells that lead to uncontrolled ________________________ and ________________________. *[b] ... show full transcript
Worked Solution & Example Answer:Complete the sentence about cancer - OCR Gateway - GCSE Biology (Combined Science) - Question 15 - 2020 - Paper 8
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Explain why gene therapy could be used to treat lung cancer and discuss the issues involved in using this type of treatment.
Answer
Gene therapy could be used to treat lung cancer by introducing healthy copies of a faulty gene, such as the p53 gene, which is crucial in controlling cell cycle and preventing damaged DNA from replicating. By restoring its function, gene therapy may halt the progression of the cancer.
However, there are several issues involved in using this type of treatment. Firstly, the method of delivering the gene effectively to the targeted cells can be challenging. Secondly, there might be risks of immune reactions against the introduced genes or vectors used for delivery, which could cause adverse effects. Finally, the long-term efficacy and safety of gene therapy are still under investigation, requiring extensive clinical trials and monitoring.