Biology Lab: Simple DNA Extraction from Wheat Germ This is one of my favorite labs/activities that I do with my Biology I students. It doesn't take long to do, it uses very simple household materials, and it works every time! There is no number crunching or data analysis, but just a fun activity that your students will really enjoy.Materials Needed: Wheat germ, 50 mL beaker, warm water, Dawn dishwashing detergent, ethyl alcohol, glass stirring rod, dropper, balance and graduated cylinder.You