Is DNA pure from a extraction?

Answer 1

To extract DNA from a person you need it in liquid form (i.e. spit) or if it's from a plant you can just grind up the plant in a blender to open up the cells. You need to add detergent and meat tenderizer. Detergent breaks down the lipid bilayer and meat tenderizer breaks down the protein surrounding the DNA. Let it sit for about 15 minutes so that everything can be broken down. Then add some isopropyl alcohol to it. The alcohol is polarized. It has a positive charge and DNA is negative by nature so it will pull the negative DNA out of everything else. You will see little bubbles or strings of white stuff forming and in a moment you will have clumps of DNA. This is as pure as you can get without being in a lab because they have stronger detergents and enzymes.

Answer 2

No, DNA extracted from biological samples is not pure as it usually contains contaminants such as proteins, lipids, and other cellular components. Additional purification steps are often necessary to obtain a high-purity DNA sample for downstream applications.

Answer 3

no.it contains contaminants