Write down the applications of gene therapy.

Explanation

**Step-by-Step Text Solution:**

1. **Definition of Gene Therapy:**
- Gene therapy is a medical technique that involves the introduction of DNA into a patient's cells to treat or prevent disease. The DNA introduced typically contains a functioning gene that can correct or replace a defective gene responsible for a genetic disorder.

2. **Applications of Gene Therapy:**
- **Treatment of Genetic Disorders:** Gene therapy is primarily used to treat genetic disorders by correcting the underlying genetic defect. This can include conditions like cystic fibrosis, hemophilia, and muscular dystrophy.
- **Cancer Treatment:** Gene therapy can be used to treat certain types of cancer by introducing genes that can help the body fight cancer cells or by making cancer cells more susceptible to treatments like chemotherapy.
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