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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
- In mitochondria, proteins accumulate in the
- In human percent of body weight of carbohydrates lipids and proteins respectively
- Which of the following is equivalent to madness?
- Desert grasses often roll their leaves due to presence of
- What is common among silver fish,scorpion,crab and honeybee
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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