Exercise 4 DNA Isolation Forensics Worksheet Name Mary Caroline Ferguson Date Section 10 14 13 41092 1 Sketch the patterns of DNA fragments that you observed on your gel Be sure to identify which sample is in each lane 2 Is there a match between any of the suspects and the DNA collected at the crime scene Based on this limited amount of information who do you think might have killed Jessica Do you have enough information to convict a suspect Why or why not Suspect number 3 killed Jessica but you do not have enough information to conclude this The circumstances of the DNA could be different from the other DNA The DNA could also be contaminated before determined weather or not the DNA could be found 3 DNA fingerprinting permits subtle differences between individuals to be identified at the genetic level Two applications that demonstrate how DNA fingerprinting is useful include paternity testing as well as forensic science Go to the following website and explore the DNA Criminal Justice link https koshland science museum org sites all exhibits exhibitdna index jsp How can the FBI CODIS system be used to identify or exonerate a suspect in a criminal case To find DNA samples you would use the swabs in the kit to determine to DNA samples The DNA is then run through a data base system If DNA shows reassurance then the law enforcement is able to share information obtained from each of the cases and possibly develop additional leads to other cases
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