5. Bob and Sue have two children, Sarah and George. While on a business trip Bob

Question

5. Bob and Sue have two children, Sarah and George. While on a business trip Bob is killed in a horrific helicopter accident. There were 5 people in total on the helicopter and their remains are beyond recognition. To identify the bodies the police use STR analysis. In Bob's case, they don't have a sample of his DNA, so they use his family's STR profiles to make the match. Which one of the Victims listed below is most likely Bob? Amel Person: Sue Sarah George Victim #1 Victim #2 Victim #3 Victim #4 Victim #5 FGA THO1 5,6 4,6 5,5 5,5 VWA 10,12 10,12 10,10 12,12 10,12 10,12 10,11 9,10 XY XY 9,10 8,9 8,10 XY XY XY 7,7 4,6

Explanation / Answer

Answer ) Victim #3 Is most likely to be BOB.

Because most useful STRs for genetic identity determinants vary between 15 to 21 repeats depending on the locus, and the above table is most like likely showing genetic differences high in victim#3

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