Paternity Test: Alanna claims John is the father of Timmy, but Leo thinks that he is the father. All of their DNA samples were taken and cut with the same restriction enzyme and run through a gel. 4. Who is the father of Timmy? 5. How many of Timmy's fragments are the same size as his mother's fragments? 6. What actually causes the DNA pieces to move through the gel? 7. Describe the difference you see in the gel between John's DNA and Leo's DNA. Alanna's DNA Timmy's DNA John's DNA Leo's DNA

Genetics Question

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DNA Restriction, Electrophoresis 1. What are restriction enzymes? 2. How do restriction enzymes function? 3. Why are restriction enzymes important in biochemistry labs? 4. What is DNA Gel Electrophoresis? 5. How does DNA Gel Electrophoresis function? 6. Why is DNA Gel Electrophoresis important in biochemistry labs?