Multiple choice

Consider the following statements: Biosensors are used in

  1. In vitro diagnostics.
  2. Detection of microbial contaminants in food.
  3. Monitoring pollutants in the abiotic component of environment. Which of the statements given above is/are correct?

  1. 1 and 2 only

  2. 2 only

  3. 1 and 3 only

  4. 1, 2 and 3
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Biosensors are indeed used in all three applications: (1) In vitro diagnostics like glucose monitoring for diabetes, pregnancy tests, and infectious disease detection; (2) Detection of microbial contaminants in food products through immunosensors or DNA-based sensors; (3) Environmental monitoring of pollutants like heavy metals, pesticides, and other contaminants in air, water, and soil. Therefore all statements are correct, making option D the right answer.

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