Forensic Lab Data 1 Insert a copy of your group s agarose gel picture below 2 Examine the data in Table 4 Based on the data can you eliminate any classmates from being a suspect Which lane is the most likely perpetrator Why Lane 8 and 9 can be eliminated because they share the least amount of DNA compared to the other lanes Compared to the perpetrator s DNA lane both lanes only matched with one of the wells However the lane that is most likely the perpetrator is lane 2 because it had the most matched wells In fact all the wells were identical even down to the STR genetic loci DNA Marker Dist Size bp cm Lane 1 Size bp Dist cm Lane 2 Size bp Dist cm Lane 3 Size bp Dist cm Lane 4 Lane 5 2 87 5 0 37 5 0 12 5 0 37 5 0 5 400 325 283 3 4 250 233 3 2 87 5 3 37 5 0 12 5 0 5 5 25 400 300 283 3 4 233 3 100 2 87 5 3 37 5 0 12 5 0 37 5 0 5 5 25 400 300 283 3 4 250 233 3 100 Dist cm 2 87 5 0 37 5 0 5 Size bp 400 325 233 3 Dist cm 3 38 0 0 12 5 0 37 5 0 5 5 25 Size bp 298 283 3 4 250 233 3 100 Lane 6 Siz e bp 300 238 228 100 Dist cm 3 37 5 0 46 0 55 5 25 Lane 7 Size bp Dist cm 2 87 5 3 37 5 0 12 5 0 38 0 5 25 400 300 283 3 4 245 100 Lane 8 Dist cm 2 87 5 3 37 5 0 37 5 0 5 Size bp 400 300 250 233 3 Lane 9 Siz e bp 325 250 100 Dist cm 0 37 5 0 37 5 5 25 Lane 10 Size bp Dist cm 2 87 5 0 36 5 3 37 5 0 37 5 0 5 5 25 400 330 300 250 233 3 100 150 0 120 0 100 0 900 800 700 600 500 400 300 200 100 0 62 5 0 87 5 1 12 5 1 25 1 5 1 75 2 12 5 2 37 5 2 87 5 3 37 5 4 12 5 5 25 Table 3 GROUP 1 Table 4 Lane Individual TPA 100 and or 400 bp CSF1PO 287 331 bp 1 2 3 4 5 6 7 8 9 10 Ladder 400 bp homozygous 100 bp and 400 bp both heterozygous 100 bp and 400 bp both heterozygous 100 bp homozygous 400 bp homozygous 100 bp homozygous 100 bp and 400 bp both heterozygous 400 bp homozygous 100 bp homozygous 100 bp and 400 bp both heterozygous STR Genetic Loci TPOX1 216 264 bp Ladder 233 3 bp and 250 bp both heterozygous 233 3 bp homozygous 233 3 bp and 250 bp both heterozygous 233 3 bp and 250 bp both heterozygous 233 3 bp homozygous 228 bp and 238 bp both heterozygous 245 bp homozygous 233 3 bp and 250 bp both heterozygous 250 bp homozygous 233 3 bp and 250 bp both heterozygous Ladder 325 bp heterozygous 300 bp heterozygous 300 bp heterozygous 298 bp heterozygous 325 bp homozygous 300 bp homozygous 300 bp heterozygous 300 bp homozygous 325 bp homozygous 300 bp and 330 bp both heterozygous
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