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An abnormal gene is replaced by normal g...

An abnormal gene is replaced by normal gene. It is called

A

Gene therapy

B

Cloning

C

Mutation

D

None of the above

Text Solution

AI Generated Solution

The correct Answer is:
**Step-by-Step Solution:** 1. **Understanding the Question**: The question asks about a process where an abnormal gene is replaced by a normal gene. This indicates a method of correcting genetic defects. 2. **Identifying Key Terms**: - "Abnormal gene" refers to a gene that has mutations or defects causing diseases. - "Normal gene" refers to a healthy version of the gene that functions correctly. 3. **Exploring Options**: - **Gene Therapy**: This is a technique that involves the introduction of a normal gene into cells to replace an abnormal or mutated gene. It aims to treat or prevent diseases by correcting genetic abnormalities. - **Cloning**: This refers to creating copies of DNA fragments or entire organisms, not specifically replacing genes. - **Mutation**: This is a change in the DNA sequence that can lead to genetic disorders, but it does not involve replacing a gene. - **None of the Above**: This option can be eliminated since one of the options is applicable. 4. **Conclusion**: The correct answer is **Gene Therapy**, as it specifically involves replacing an abnormal gene with a normal one to treat genetic disorders. 5. **Final Answer**: An abnormal gene is replaced by a normal gene. It is called **Gene Therapy**. ---
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