UPSC Prelims 2015 · Question 23 of 98

UPSC Prelims 2015 question on Nanotechnology in Health

With reference to the use of nanotechnology in health sector, which of the following statements is/are correct?

1. Targeted drug delivery is made possible by nanotechnology.
2. Nanotechnology can largely contribute to gene therapy.

Select the correct answer using the codes given below.

  1. 1 only
  2. 2 only
  3. Both 1 and 2
  4. Neither 1 nor 2
Show answer

Answer: C. Both 1 and 2

Verdict

The answer is both 1 and 2. Nanotechnology enables targeted drug delivery and contributes substantially to gene therapy.

Analysis

Statement 1 is CORRECT. Nanoparticles can be engineered to carry a drug and release it at a specific tissue or cell type, which raises efficacy and reduces systemic side effects, and this is one of the most developed medical applications of the field. Statement 2 is CORRECT. Non viral nanocarriers such as lipid nanoparticles and polymeric vectors are used to deliver genetic material into cells, which is precisely the delivery problem gene therapy has to solve.

Source

Business Line report on nanoparticles developed for drug delivery.

How to crack it

Both statements rest on a single property, so establish that property once and answer both. Nanoscale carriers can cross biological barriers and can be surface functionalised to recognise particular cells, which makes any targeted delivery claim plausible whether the cargo is a drug or a gene. When two statements in a question are applications of the same underlying capability, they usually stand or fall together, and both correct becomes the natural answer unless one contains a specific factual error.

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