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NEET 2017 · BiologyPrevious Year Question

The process of separation and purification of expressed protein before marketing is called

Answer: (B) Downstream processing. Answer: (B) Downstream processing Solution: After the biosynthetic (production) stage, the expressed product is separated and purified before it can be marketed; these processes of separation and purification are collectively termed downstream processing.

  1. A.Upstream processing
  2. B.Downstream processing✓
  3. C.Bioprocessing
  4. D.Postproduction processing

Correct Answer

(B) Downstream processing

Solution & Explanation

Answer: (B) Downstream processing Solution: After the biosynthetic (production) stage, the expressed product is separated and purified before it can be marketed; these processes of separation and purification are collectively termed downstream processing. The product is then formulated with preservatives and subjected to clinical trials and quality control. NCERT Reference: Ch 9, p.175, line(s) 45-46 — "The processes include separation and purification, which are collectively referred to as downstream processing."

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