Match the following techniques or instruments with their usage:
| (a) | Bioreactor | (i) | Separation of DNA fragments |
| (b) | Electrophoresis | (ii) | Production of large quantities of products |
| (c) | PCR | (iii) | Detection of pathogen, based on antigen-antibody reaction |
| (d) | ELISA | (iv) | Amplification of nucleic acids |
Held on 30 Apr 2020 · Verified 9 Jul 2026.
(a)−(iii),(b)−(ii),(c)−(iv),(d)−(i)
(a)−(ii),(b)−(i),(c)−(iv),(d)−(iii)
(a)−(iv),(b)−(iii),(c)−(ii),(d)−(i)
(a)−(ii),(b)−(i),(c)−(iii),(d)−(iv)
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