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D.N.A. is used to help solve crimes by the fingerprint in the DNA which can track down the person at the scene of the crime. Also, if a sample of the body is left (i.e. blood, any other bodily fluids, hair, skin) is left at the scene, through DNA finger printing, the criminal(s) involved would be identified.
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∙ 15y ago
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∙ 13y agoEach person has their own DNA profile, unless they are identical twins, in which case they would have the same profile, but unique fingerprints. Forensic scientists can use the DNA profile of a suspect and compare it to a profile that they found at the crime scene. Any DNA profiles that are on record, the same way fingerprints can be on record, is kept in CODIS (Combined DNA Index System). This is one way of positively identifying a person.
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∙ 15y agoEach person's DNA is unique to them, and only them; no one's DNA is an identical match to anyone else's. When someone commits a crime, whether it is rape, murder, etc. they quite often inadvertenly (unknowingly) leave their DNA at the crime scene, or on the victim. Example: If a woman is raped, then the perpetrator's DNA (semen, hair, skin cells, blood) can be matched to the rapist. If the rapist is caught, or if his DNA is already in the criminal data base, then his DNA can be matched to the DNA left on, or near the victim, thus resulting in his arrest, conviction and incarceration.
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∙ 15y agoNo two people, with the exception of identical twins, have the same genetic makeup, the same DNA. A DNA fingerprint of DNA recovered at a crimescene can be produced by gel electrophoesis and compared to a suspect's DNA fingerprint.
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∙ 14y agoEvery individual has a unique DNA fingerprint. Enzymes called restriction enzymes are used to cut DNA at specific locations. Every individual has a different pattern of fragments formed when their DNA is treated with these enzymes. This pattern of fragments is called a DNA fingerprint. Since every individual is a unique DNA fingerprint, the technique is used to identify individuals with high accuracy and fidelity.
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∙ 9y agoDNA technology is a major contributor in forensic science. Since DNA is unique for every individual, it is used to find matches in paternity tests, rape and murder cases, as well as in identifying dead bodies.
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∙ 11y agoThe DNA (Deoxyribonucleic acid) of each individual is distinctly different from that of every other person. As DNA is present in every cell of the human body, and the cells are shedded continuously from the skin, DNA found at a crime scene may originate from a suspect. DNA tests and the comparison of the results can then determine of the DNA is from the suspect or not, and is strong forensic evidence in court - so long as the DNA was found on, ie. a murder weapon, or the victim themselves.
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Why cleavage of DNA is done in recombinant DNA technology?
Recombinant DNA technology is the most emerging technique for the production of DNA for the useful bio-materials like insulin. So to produce recombinant DNA two different DNA is rejoined. so cleavage is done to extract the desired DNA and then joined again.
What is the importance of polymerization in industry?
To make stuff. Nylon is a polymer. So is DNA. So is PVC. So is Styrofoam. These things are useful. They are polymers. Polymerization is how you make polymers. QED polymerization is useful.
How Pulsed-Field Gel Electrophoresis differences from PCR identification of bacterial strain?
In using PCR to identify a bacterial strain, a single segment of DNA is amplified, typically an rRNA gene or a portion of it. The amplified fragment is then sequenced and the sequence compared to that of sequences in the databases. Since rRNA gene sequences are so conserved, this method does not have the resolution to distinguish individual strains of the same species, although it can be used for species identification. In PFGE, there is no amplification. Instead, restriction enzymes are used to digest chromosomal DNA to generate a characteristic pattern. Also, the detection method is staining of the DNA, not DNA sequencing
Can hair be used for DNA testing?
No, hair is not interchangeably used to describe DNA. However, hair is a source for DNA this is why when forensic scientists are involved in crime scenes, they look for any sample of which contains DNA, including hair.
Does a molecule have DNA?
DNA is a molecule so no.
What is the meaning of forensic laboratory?
forensics is like crime study......so a forensic lab is a lab where they can test stuff like DNA or anything else"crime related"
Why cleavage of DNA is done in recombinant DNA technology?
Recombinant DNA technology is the most emerging technique for the production of DNA for the useful bio-materials like insulin. So to produce recombinant DNA two different DNA is rejoined. so cleavage is done to extract the desired DNA and then joined again.
Why are other mineral properties less useful for identification?
because it is not the color that matters but the jedbots that matters.
What is the importance of polymerization in industry?
To make stuff. Nylon is a polymer. So is DNA. So is PVC. So is Styrofoam. These things are useful. They are polymers. Polymerization is how you make polymers. QED polymerization is useful.
Is DNA positive?
DNA Mutations can be positive in the fact that they can be beneficial to the host of the mutation. For example, if our DNA mutated so that we could have fins and gills, we could be better equipped for the ocean, which could be useful if the Earth's landmass was devastated or could no longer support all of us. Most of the time, DNA Mutations are useful adaptations to maintain homeostasis in the human body.
In what situations would DNA fingerprinting not be an appropiate tool for identification?
If you have two suspects who are identical twins, and you are trying to find out which one is the killer. Identical twins have identical DNA. However, identical twins do not have identical fingerprints, so you could just get a regular fingerprint sample instead.
How Pulsed-Field Gel Electrophoresis differences from PCR identification of bacterial strain?
In using PCR to identify a bacterial strain, a single segment of DNA is amplified, typically an rRNA gene or a portion of it. The amplified fragment is then sequenced and the sequence compared to that of sequences in the databases. Since rRNA gene sequences are so conserved, this method does not have the resolution to distinguish individual strains of the same species, although it can be used for species identification. In PFGE, there is no amplification. Instead, restriction enzymes are used to digest chromosomal DNA to generate a characteristic pattern. Also, the detection method is staining of the DNA, not DNA sequencing
Can hair be used for DNA testing?
No, hair is not interchangeably used to describe DNA. However, hair is a source for DNA this is why when forensic scientists are involved in crime scenes, they look for any sample of which contains DNA, including hair.
Is it hard to get training in computer forensics?
As many things, computer forensics requires a lot of studying and hard work. So yes, it is hard, perhaps harder than most of the other courses available.
Why is PCR useful?
PCR polymerase chain reaction allows for the scientist to put in a small amount of DNA and to receive a large amount of DNA back. It amplifies the DNA. Each cycle doubles the amount of DNA template.
Does a molecule have DNA?
DNA is a molecule so no.
Why is blood typing so important to transfusions pregnancy and forensics?
because the wrong kind of blood can harm you
