Definition of Matching: The task is to pair each biotechnological term in List-I with its correct description or application in List-II.
Option Analysis:
(a) Bioreactors: These are vessels designed to convert raw materials into specific products (e.g., insulin, enzymes) through controlled biological processes. Matches with ii) Vessels which convert raw material into specific product.
(b) Downstream processing: This involves the separation and purification of products (e.g., proteins) after biosynthesis. Matches with iv) Involves separation and purification.
(c) Recombinant protein: Proteins like insulin produced using recombinant DNA (rDNA) technology, often in bioreactors. Matches with i) Insulin produced by rDNA technology.
(d) PCR: Polymerase Chain Reaction is used to amplify DNA, including detecting mutated genes in cancer patients. Matches with iii) Detect mutated genes in suspected cancer patient.
Correct Pairing: The correct matching is a-ii, b-iv, c-i, d-iii, which corresponds to option (3).
Conclusion: The correct answer is (3) a-ii, b-iv, c-i, d-iii, as it accurately aligns each term with its application.