So where will you find DNA sources from these suspects? You can get DNA from body fluids, blood, tissue, hair, or saliva. Today you bought them all breakfast and covertly collected cheek cell samples from their straws to compare to the unknown sample in the ABC gum.
Now is the time to choose the person you feel is the perpetrator of the crime and get on with the experiment. Click on one of their images to continue on to the lab.