What is wrong with simply saying that a suspect is included in a mixture without providing any statistics? Why is it important to establish independence between alleles and between loci?
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What is wrong with simply saying that a suspect is included in a mixture without providing any statistics? Why is it important to establish independence between alleles and between loci?
im assuming allele frequency in dna, particualrily
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- What is wrong with simply saying that a suspect is included in a mixture without providing any statistics? Why is it important to establish independence between alleles and between loci? In terms of str analysis and allele frequency. Forensic DNA Analysis This is all that has been asked so i can't provide more information.Examine the gel from a Rape investigation below. If you were the DNA analyst you would conclude that: DNA size markers blood sexual assault evidence samples victim |suspect A suspect B female fracțion male fraction 1 2 3 4 5 6 A. Suspect B is excluded as the source of the evidence, but Suspect A cannot be excluded. B. Both Suspects A and B are excluded as the source of the evidence. C. Suspect A is excluded as the source of the evidence, but Suspect B cannot be excluded. D. Suspect B cannot be excluded as a source of the evidence. The results with Suspect A are inconclusive. E. Neither Suspect A or B can be excluded as a source of the evidence.Discuss the principle of DNA fingerprinting. How would you use the technique to find out a criminal in forensic studies ? Explain.
- State the five basic steps of DNA fingerprinting using the RFLP method. Why do you think the PCR method is of more use in crime scene investigations?How is the DNA used for catching crime suspects. Describe the procedure and cite particular example where it helped solve a case or absolved an innocent person from any wrongdoingSuppose you are arrested for a serious crime and a DNA profile is created and entered into databases. Later, you are proven innocent. Should you have the right to have your DNA profile removed from all databases?
- Why can a DNA sample not be a reliable source of evidence?An important application of DNA fingerprinting is relationship testing. Persons who are related genetically have some bands or peaks in common. The number they share depends on the closeness of their genetic relationship. For example, an offspring is expected to receive half of his or her minisatellites from one parent and the rest from the other. The diagram shown here schematically illustrates traditional DNA fingerprints of an offspring, mother, and two potential fathers. In paternity testing, the offspring’s DNA fingerprint is first compared with that of the mother. The bands that the offspring have in common with the mother are depicted in purple. The bands that are not similar between the offspring and the mother must have been inherited from the father. These bands are depicted in red. Which male could be the father?Just like actual fingerprints, DNA fingerprints are unique to most individuals (other than identical twins). Today, most police departments in the United States use DNA fingerprints as a criminal investigation tool. What is another application of DNA fingerprints? O A. Identifyipg a person's personality traits O B. Identifying the father of a child O C. Identifying the sex of a future, not conceived offspring O D. Determining if a person has consumes genetically engineered plants
- Which of the following criteria do you feel is the most important one to optimize for a DNA profiling methods? Speed Discriminating power Sensitivity Cost False Positive RateYou are examining evidence from an old crime scene. You have a blood sample, but you believe that the sample may be too degraded to get DNA from. You decide to try to retrieve mtDNA from the sample and compare it to a sample from your suspect. What information could this sample give you? That the blood at the crime scene belonged to your suspect That the suspect has blond hair and blue eyes That there is a maternal relation between the two people That the person from the crime scene has been near the suspectOn the assumption that the two profiles arise from twogenetically related individuals, law enforcement agenciespursue relatives of the person whose profile is stored in theDNA database. Testing in these cases is known as familialDNA testing. Should such searches be considered scientificallyvalid or even ethical?