Our 4 "blood" samples 
Placing the samples into the wells in the gel.
Sample C showing clearly the red evil "gene"!!As Higher and Intermediate 2 are studying DNA we had a look at a technique similar to the one they use for DNA profiling. We were using electrophoresis to seperate out 4 different "blood" samples. Which one contains the evil red gene? The class loaded the 4 samples into a gel and then ran an electric current through them. The seperate parts of the "blood" samples travel through the gel at different rates. We found that sample C contained the evil red "gene"!
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