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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.
Related Questions: - Most of the water, in mature plant cells, occurs chiefly in which of the following?
- Which of the following hormones is a steroid?
- H. M. S. Beagle is associated with which scientist?
- Scientist who gave classification of insects, reptiles and quadrapods
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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
- Most of the water, in mature plant cells, occurs chiefly in which of the following?
- Which of the following hormones is a steroid?
- H. M. S. Beagle is associated with which scientist?
- Scientist who gave classification of insects, reptiles and quadrapods
- Which of the following gastric cells indirectly help in erythropoiesis
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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