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Biotechnology: Principles and Processes — BIOLOGY STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 ScienceBIOLOGYBiotechnology: Principles and Processes1 Mark
MCQ
Elution means?
  • A
    Separation of DNA fragments on agarose gel
  • B
    Cutting and extraction of DNA bands from the agarose gel
  • C
    Making the DNA bands visible under UV radiation
  • D
    Isolation of alien DNA from the choice organism
✓

Answer

  1. Cutting and extraction of DNA bands from the agarose gel

Explanation:

B. Cutting and extraction of DNA bands from the agarose gel.

Solution : Cutting and extraction of DNA is done to separate the DNA from the gel in which it is collected. Water or a low salt buffer is added to break the cation bridge and dislodge the DNA from the gel and elute it.

So the correct answer is " B. Cutting and extraction of DNA bands from the agarose gel."

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