How are different layers separated during DNA extraction?

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thebossofme191 · Answer

idk bro ur going to have to look it up ur self i cant find it sorry.

koikkara · Answer

Article: DNA can be extracted from many types of cells. The first step is to lyse or break open the cell. This can be done by grinding a piece of tissue in a blender. After the cells have broken open, a salt solution such as NaCl and a detergent solution containing the compound SDS (sodiumdodecyl sulfate) is added. These solutions break down and emulsify the fat & proteins that make up a cell membrane. Finally, ethanol is added because DNA is soluble in water. The alcohol causes DNA to precipitate, or settle out of the solution, leaving behind all the cellular components that aren't soluble in alcohol. The DNA can be spooled (wound) on a stirring rod and pulled from the solution at this point. @CBARREDO1 Ref: http://www.biologyjunction.com/extracting_dna.htm