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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  • 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 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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  • Q: What Is a Buccal Swab Test?

    A: A buccal swab test is a method of collecting DNA samples. According to the Laboratory Corporation of America, DNA samples are collected by rubbing the inside of the mouth with cotton-tipped swab. Unlike obtaining DNA from blood, buccal swab tests are non-invasive.
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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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  • Q: What Are Some Cases That Forensic Entomology Has Been Used to Solve?

    A: Insects have been used to solve many crimes, including a 1991 "Ken and Barbie" murder and a 1997 murder of two young children. Forensic entomology is the study of insects primarily for medico-legal purposes. The primary purpose of carrying out a forensic entomology study is to estimate the time since death, states the Simon Fraser University Museum of Archaeology and Ethnology.
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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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  • 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: What Is the Purpose of Funeral Embalming?

    A: The purpose of embalming is to preserve the tissues in the body and delay decomposition. Many people choose embalming because it helps the body look more life-like for public viewing purposes at a funeral or memorial service.
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  • How Is Chromatography Used in Forensic Science?

    Q: How Is Chromatography Used in Forensic Science?

    A: Chromatography is used in forensic science to identify drug use, differentiate between different bomb powders and highlight the chemical composition of different substances. As an approach that allows forensic scientists to separate chemical components, chromatography either detects the substance immediately, or it makes it easier to move onto a precise test.
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  • How Is Chromatography Used to Solve Crime?

    Q: How Is Chromatography Used to Solve Crime?

    A: Chromatography is used to separate substances from crime scene samples to pinpoint information about materials. This information can then assist investigators with finding what was used by criminals.
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  • Q: What Are the Differences Between DNA Fingerprinting and Regular Fingerprinting?

    A: Regular fingerprinting methods conduct tests and make records of finger and thumb prints of an individual, while DNA fingerprinting tests the deoxyribonucleic acid of a person, which is located within the nucleus of all cells in the body, states The Tech Museum of Innovation. During DNA fingerprinting, scientists analyze the genetic material to determine the differences in DNA between individuals.
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  • Q: What Are Some Facts About Fossils?

    A: Fossils are the remains of plant or animal life that were buried for millions of years until they finally turned to stone. Most fossils found today are from creatures that lived in the sea, as these had a much better chance of being buried before they were destroyed.
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  • Q: Who Is Leone Lattes in Forensics?

    A: Leone Lattes was the forensic serologist who, in 1915, developed a method for restoring dried blood samples so they could be tested for blood type. In 1932, Lattes developed a method for determining blood type from a dry sample.
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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: What Techniques Did Alec Jeffreys Develop for Genetic Fingerprinting?

    A: Professor Sir Alec Jeffreys' 1984 development of genetic fingerprinting revolved around a technique that points out the unique nature of an individual's DNA code. He showed that restriction fragment length polymorphism, a variation in chromosome pairs, can occur in over 10,000,000 different places, indicating that a person's genetic code is unique to the point that it can be used for positive identification.
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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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  • Q: How Do You Use a Formaldehyde Testing Kit?

    A: Most home formaldehyde test kits include a badge or pump for collecting an air sample that is returned to an accredited laboratory for testing. Formaldehyde is of special concern in new or remodeled homes.
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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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