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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
- The 24 hour (diurnal) rhythm of our body such as the sleep-wake cycle
- …. Is part of symplast
- Consider four measures (A-D) that could be taken to successfully grow chickpea
- The organelle associated with aerobic respiration is
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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
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