Navigate

During the process of isolation of DNA, chilled ethanol is added to

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.

NEET2013K
admin:

Related Questions

  1. The selective permeability of the plasma membrane allows the cell to maintain
  2. An association of individuals of different species living in the same habitat and
  3. Castor is a dicot having albuminus seeds.In these seeds there is a specific
  4. In the phosphorus cycle, weathering makes phosphate available first to
  5. In mesophyll of C plants cells which of the following cycle takes place