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Purifications of purified proteins involved in small scale lab productions meant mainly for research purposes are referred to as _____________

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Purifications of purified proteins involved in small scale lab productions meant mainly for research purposes are referred to as _____________

(a) preparative purifications

(b) chromatographic techniques

(c) analytical purifications

(d) dialysis techniques

This question was posed to me during an online interview.

My doubt is from Enzymes Purification topic in portion Enzymes Purification of Enzyme Technology

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The correct choice is (c) analytical purifications

Best explanation: The two main classification of purifications are preparative and analytical. Analytical purification are involved in small scale lab preparations and mainly used for research purposes. Examples purified by analytical purifications are as follows: pronase, dispase, caspase etc. Preparative purifications involve large scale productions of commercial important proteins. Chromatography and dialysis techniques are the steps involved in purification.

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