The technique of using gene technology in medicine where by an abnormal or faulty as non functional gene is replaced by a normal or working gene so that the body can synthesize the correct enzyme or protein and eliminated the root cause of the disease is called

Options

A. Chemotherapy
B. Biotherapy
C. Physiothcrapy
D. Gene thearpy

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question describes a technique in gene technology that involves replacing a faulty gene with a normal gene to help the body produce the correct enzyme or protein, thereby addressing the root cause of a disease.

2. **Identifying the Technique**: The technique being described is a form of corrective therapy that targets genetic defects or hereditary disorders.

3. **Defining the Corrective Therapy**: The specific type of corrective therapy that involves the introduction of a normal gene to compensate for a non-functional gene is known as gene therapy.

4. **Evaluating Other Options**:
- **Chemotherapy**: This is a treatment that uses drugs to kill cancer cells and is not related to gene replacement.
- **Biotherapy**: This involves treatments derived from living organisms, often used in cancer treatment, but does not specifically refer to gene replacement.
- **Physiotherapy**: This therapy uses physical methods, such as exercise, to treat disorders and is unrelated to gene technology.

5. **Conclusion**: Based on the definitions and explanations, the correct answer to the question is **gene therapy**.

**Final Answer**: The technique is called **gene therapy**.

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