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During the process of isolation of DNA, chilled ethanol is added to
Options
(a) Remove proteins such as histones
(b) Precipitate DNA
(c) Break open the cell to release DNA
(d) Facilitate action of restriction enzymes
Correct Answer:
Precipitate DNA
Explanation:
Ethanol is non-polar molecule while DNA is a polar molecule, it has a net negative charge due to the phosphate groups attached to it. When DNA is placed into a solution of 100% ethanol, it becomes insoluble and precipitates out of solution.
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Topics: Biotechnology and Its Applications
(123)
Subject: Biology
(4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Deeply sown seeds do not germinate and do not come up over due to the deficiency
- Gibberellin promote
- Type of pollination in Commelina is
- Molecular basis of organ differentiation depends on the modulation in transcription by
- Exchange of gases in the alveoli of lungs takes place through
Topics: Biotechnology and Its Applications (123)
Subject: Biology (4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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