Table of Contents
What are some problems associated with the use of DNA evidence in crime fighting?
Issues with using DNA testing in law enforcement: Errors It is difficult to overstate the support for DNA as it became incorporated into crime solving. These issues include basic human error and human bias, linking innocent people to crimes, privacy rights, and a surge in racial disparities.
What is the main challenge in using DNA typing?
One of the most serious concerns regarding PCR-based typing is contamination of evidence samples with other human DNA. PCR is not discriminating as to the source of the DNA it amplifies, and it can be exceedingly sensitive. Potentially, amplification of contaminant DNA could lead to spurious typing results.
What are some technical difficulties with DNA fingerprinting?
Sample contamination, faulty preparation procedures, and mistakes in interpretation of results are major sources of error in DNA fingerprinting. These issues can cause discrepancies between biological proof and legal proof in court cases.
What are the disadvantages of DNA profiling?
Using DNA profiles to determine paternity
| Advantages | Disadvantages |
|---|---|
| DNA profiles can be used to place suspects at a crime scene | It is possible to plant DNA at a crime scene giving false evidence, or an innocent person’s DNA might be at the scene even though they had nothing to do with the crime |
What are some limitations of using DNA as evidence?
Cons
- DNA evidence is only found in a small fraction of crime scenes.
- Evidence such as confessions, murder weapons and other forensic evidence must supplement DNA evidence, as juries don’t always base their verdicts upon DNA evidence alone.
What are the advantages and disadvantages of a DNA database?
List of Pros for DNA Databases
- It can provide another layer of evidence.
- There can be crime reduction rates.
- People maintain control of their DNA.
- It facilitates information sharing between countries.
- The information can be used for genetic studies.
- Information can be stored infinitely.
- Information can be hacked.
What are some critical issues with genetic testing?
Among these critical issues are nondirectiveness; informed consent; confidentiality; multiplex testing; recognizing social and cultural differences; and the need for a genetically literate public. Many people who undergo genetic testing receive “good news” and reassurance with their genetic test results.
What factors affect the accuracy of genetic testing and counseling?
The prediction of genetic risk also depends on the sensitivity and specificity of the test itself and the quality of laboratory procedures (see Chapter 3 ). The immediacy of decision making is another key variable in genetic testing and counseling. The time pressure surrounding genetic testing varies by circum- stances and disorders.
What is a DNA genetic disorder?
A genetic disorder is a disease caused in whole or in part by a change in the DNA sequence away from the normal sequence.
What are some examples of genetic disorders?
These include many cancers, as well as some forms of neurofibromatosis. A genetic disorder is a disease caused in whole or in part by a change in the DNA sequence away from the normal sequence. Genetic disorders can be caused by a mutation in one gene (monogenic disorder), by mutations in multiple genes (multifactorial inheritance disorder),