Forensic Science

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Creating your own DNA fingerprint helps you to learn about DNA. This process takes about an hour to put together and overnight to set. You need a DNA sample, beakers, a laboratory, restriction enzymes, a gel tray, an electrophoresis apparatus, buffer solution, a staining sheet and a staining tray.

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  • What tools do forensic scientists use?

    Q: What tools do forensic scientists use?

    A: Forensic scientists use various tools to accomplish their tasks including rubber gloves, a head rest, dissection scissors, ropes, and goggles, including arterial and jugular tubes. They also have an autopsy table, autopsy saws, blades and a dissecting knife. Other tools include X-ray boxes, a fingerprint set, an osteometric board, a water bath and post-mortem needles.
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  • Why is forensic science so important?

    Q: Why is forensic science so important?

    A: Forensic science is important because it aids in establishing the guilt or innocence of potential suspects. Forensic evidence is also useful for linking crimes, which establishes the patterns of crimes and also narrows the number of probable suspects.
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  • How do you create a DNA fingerprint?

    Q: How do you create a DNA fingerprint?

    A: Creating your own DNA fingerprint helps you to learn about DNA. This process takes about an hour to put together and overnight to set. You need a DNA sample, beakers, a laboratory, restriction enzymes, a gel tray, an electrophoresis apparatus, buffer solution, a staining sheet and a staining tray.
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  • How is spectrophotometry used in forensics?

    Q: How is spectrophotometry used in forensics?

    A: Spectrophotometry is used in forensics to identify drugs or other toxins. When identifying an unknown drug or chemical, forensic scientists will use spectrophotometry to analyze how the unknown substance reacts to ultraviolet and infrared light to identify its composition.
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  • What is a comparison microscope?

    Q: What is a comparison microscope?

    A: A comparison microscope is a specialized microscope that allows for a side-by-side comparison of different materials. Invented by Calvin Goddard in the 1920s, these microscopes are often used today by the FBI and other law enforcement to determine the similarities of objects such as hairs and fired ammunition.
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  • Q: What are some types of forensic science?

    A: The field of forensic science includes a number of disciplines, such as anthropology, odontology and toxicology. These experts find, collect and preserve evidence in criminal cases.
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  • What are the different types of toxicology?

    Q: What are the different types of toxicology?

    A: Toxicology includes the fields of forensic, chemical, aquatic, eco- and environmental toxicology, and toxicogenomics. Toxicology is a biological field of study on the harmful effects of chemicals on biological organisms.
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  • Why do we bury bodies six feet under?

    Q: Why do we bury bodies six feet under?

    A: The common phrase "six feet under" is traced back to England in 1665, when an outbreak of the plague led the mayor of London to enact a law requiring all graves to be at least six feet deep in an attempt to limit the spread of disease. Today, many bodies are not actually buried six feet underground, but laws still exist to mandate burial requirements.
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  • What are the different stages of rigor mortis?

    Q: What are the different stages of rigor mortis?

    A: The six stages of rigor mortis in humans include absent, minimal, moderate, advanced, complete and passed, according to the Medicolegal Death Investigators' training manual on Education Portal. When rigor mortis occurs, the body's muscles harden after death in a gradual process.
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  • What does an undertaker do to a body?

    Q: What does an undertaker do to a body?

    A: An undertaker's roll is to prepare a body for the embalming process as well a prepare the body for a funeral service if necessary. When an embalming takes place, an undertaker cleans the body, injects embalming fluid into the arteries, treats body cavities and other processes to prepare the body for burial, according to ListVerse. An undertaker is also known as an embalmer.
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  • Q: How do you sell your body to medical science?

    A: While it is illegal to sell organs as of 2015, there are a number of legal ways for humans to sell organic material, such as use of a womb, breast milk, blood plasma and sex cells, according to Bankrate. Other methods of selling your body to medical science include laying in bed for an extended period of time, offering a testicle for research and enrolling in various paid studies, explains Business Insider.
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  • What fossils are classified as original remains?

    Q: What fossils are classified as original remains?

    A: Original remains are the preserved and unchanged remains of plants and animals. These fossils most often come in the form of bones, animals trapped in ice, or insects trapped in resin.
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  • What is forensic photography?

    Q: What is forensic photography?

    A: Forensic photography is a type of photography that showcases accidents and crime scenes. This type of photography creates a visual record of evidence usable by the police and in court.
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  • What are the five steps in the scientific method?

    Q: What are the five steps in the scientific method?

    A: According to HowStuffWorks.com, the five steps in the scientific method are make an observation, ask a question, form a hypothesis, conduct an experiment and accept or reject the hypothesis. Various numbers of steps are sometimes used to explain the scientific method, but they all include the same ideas.
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  • How long do fingerprints stay on objects?

    Q: How long do fingerprints stay on objects?

    A: No scientific methods can determine the length of time for which a fingerprint lasts on an object. There are many factors that determine how long a fingerprint lasts on any surface or object, with environmental conditions being the primary influence on the longevity of the prints.
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  • What is the most common fingerprint pattern?

    Q: What is the most common fingerprint pattern?

    A: Fingerprints patterns are of three types: arches, loops and whorls, and loops are the most common pattern, being found in 65 to 70 percent of all fingerprints. In this pattern, ridges or curved lines enter from one side of the finger, form a loop and exit from the same side.
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  • What are the pros and cons of forensic science?

    Q: What are the pros and cons of forensic science?

    A: Some pros of forensic science are that it provides evidence that can be used to help convict criminals and overturn wrongful convictions, but it can also be costly and time consuming to process the evidence. Even when there is some type of forensic evidence, it is possible for the evidence to be processed incorrectly, yielding an inaccurate result.
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  • What are some forensic anthropology cases?

    Q: What are some forensic anthropology cases?

    A: In 2004, forensic anthropology findings led New Jersey prosecutors to reinvestigate the cause of James Ridgeway's death, which was inconclusive in 1979. In another case, reconstructive techniques helped identify the fragmented remains of a San Diego woman named Joy Risker, whose body was buried in an Arizona desert.
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  • Q: What is a dissecting tray used for?

    A: A dissecting tray provides containment for materials resulting from the dissection process. It allows enough space for the analysis of the specimen to take place while also providing drainage for water and other substances.
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  • How do you pass a polygraph test?

    Q: How do you pass a polygraph test?

    A: A polygraph test can be passed by manipulating the body's response to control questions. A participant's lies are only considered lies when they register a higher response than control questions. The results can therefore be manipulated in a participant's favor if the participant is able to elicit a higher response to control questions than the relevant questions of the examination.
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  • Q: How do you obtain DNA for DNA fingerprinting?

    A: To obtain DNA for DNA fingerprinting, a sample of cells from skin, hair, blood, saliva or semen is collected. The white blood cells from the sample are broken open using detergent, and then the usable DNA is separated from all the other cellular material. Subsequently, the extracted DNA is cut into smaller pieces using restriction enzymes.
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