Candy Electrophoresis Lab

1.  I was unable to analyze the data properly because we went to an assembly that ran over its time, causing the gel to be plugged in for too long. I analyzed another groups data and saw that all the same dye colors were next to each other. The red dye also turned light pink. Blue traveled the least amount, then red, then yellow. Some dyes ran off of their gel also.
2.  Fast green would travel similar to the skittles green. Citrus red 2 appears to be similar to the yellow-orange candy dye, so it would travel similarly. I chose these because the colors are similar to the colors of the candy dye.
3.  Dog food has artificial food dyes in it because it appeals to the owners. If the dog food looks visually pleasing, the owner will want to buy the food for their dog.
5.  The two factors controlling the dye's movement is the length of the DNA and the amount of time the dyes were in electricity for.
6.  Electricity moves the dyes through the gel.
7.  The positive and negative charge cause the molecules to separate by size. The DNA molecules move away from the negative charge towards the positive charge.

8.  DNA molecules with weights of 600, 1000, 2000, and 5000 daltons would separate from longest to shortest length. The larger numbers would stay closer to the negatively charged side, whereas the shorter length molecules would move towards the positively charged side of the gel.


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