1 what allows for the copying of only very specific, Ask an Expert

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1. What allows for the copying of only very specific sections of DNA from all the DNA in a sample of Human cells?
2. Why are fluorescent primers used when preparing a DNA sample for profiling?
3. What is the function of gel electrophoresis in DNA profiling?
4. Explain, in very general terms, how the probability that two DNA profiles come from different individuals is calculated.
5. What is the source of the DNA variations on which DNA profiling is based?
6. Can you think of a situation when the DNA from two people might produce the same profile?

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