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October 2022 1 2 Report
Problem Solving Lab 13-3 Applying Concepts 1 How is identification made from a DNA fingerprint? DNA fingerprint analysis requires a sample of DNA from a person, either living or dead. The DNA is first cut up into smaller segments with enzymes. The segments are then sepa- rated according to size using electrophoresis. When stained, the DNA segments appear as colored bands in a specific order. These bands form a person's DNA fingerprint Analysis Parents Parents Parents Parents Soldier An unidenti- AB C D E F H fied soldier from the Vietnam War who had been placed in the Tomb of the Unknowns at Arlington National Cemetery was identified through DNA fin gerprinting. The soldier could have been one of four possible individuals. A DNA sample from his body was analyzed. The DNA from the parents of the four suspected soldiers was ana- lyzed. The diagram shows a DNA fingerprint pattern analysis similar to the one that was actually done. Find the correct match between the soldier's DNA fingerprint pattern and those of his parents. Remember, a child's DNA is a combina- tion of parental DNA 0 1 Thinking Critically 1. Which parental DNA matched the unknown soldier? How did the DNA pattern allow you to decide? 2. What percent of the soldier's DNA matched his father's DNA? His mother's? Explain why. 3. Could an exact identification have been made it only one parent were alive? Explain why​

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