DNA Extraction Lab: Strawberry. Background: The long, thick fibers of DNA store the information for the functioning of the chemistry of life. DNA is present in every cell of plants and animals. The DNA found in strawberry cells can be extracted using common, everyday materials. Strawberries are soft and easy to pulverize.
DNA extraction is a pH-sensitive process, and using a tris buffer helps keep the pH stable over cell lysis and extraction. Tris as a Buffer As pH can influence and be influenced by a number of cellular factors, maintaining a stable pH is essential to experimental science.