Which of the following statements with regard to genetic medicine is/are correct ?
- 1.Genetic medicines correct/compensate for the faulty genes responsible for disease.
- 2.Engineered viruses and lipid nanoparticles are used as carriers of the genetic medicine.
- 3.Genetic medicines alter the entire DNA sequence.
Select the answer using the code given below :
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Answer: C. Statement 1 is correct: genetic medicines fix, replace or make up for faulty genes. Statement 2 is correct: modified viruses (like AAV) and lipid nanoparticles are used to deliver them into cells. Statement 3 is wrong: they target specific genes and do not change the entire DNA sequence. So 1 and 2 only.
Watch for: Students think 'genetic' means the whole DNA is rewritten.
Why the other options are wrong
- A. Wrong because statement 2 is also correct.
- B. Wrong because statement 3 is false.
- D. Wrong because genetic medicines do not alter the whole genome.
Source to check: Department of Biotechnology (dbtindia.gov.in) material on gene therapy; US FDA 'What is Gene Therapy?' page
Answer from the provisional UPSC key; it may change when the final key is out. Written and fact-checked by AI against the official key. Spotted a mistake? Report it.