Forensic Science

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.

See Full Answer
Filed Under:
  • 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.
    See Full Answer
    Filed Under:
  • 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.
    See Full Answer
    Filed Under:
  • 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.
    See Full Answer
    Filed Under:
  • 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.
    See Full Answer
    Filed Under:
  • 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.
    See Full Answer
    Filed Under:
  • 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.
    See Full Answer
    Filed Under:
  • 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.
    See Full Answer
    Filed Under:
  • 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.
    See Full Answer
    Filed Under:
  • 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.
    See Full Answer
    Filed Under:
  • What is blood spatter analysis?

    Q: What is blood spatter analysis?

    A: Blood spatter analysis is a forensic science involving the study of bloodstain patterns that criminologists use to reconstruct the events of a suspected crime. Analysts examine subtle factors such as the placement, shape and volume of blood to determine the weapon and amount of force used in an attack.
    See Full Answer
    Filed Under:
  • 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.
    See Full Answer
    Filed Under:
  • 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.
    See Full Answer
    Filed Under:
  • Q: What clothes does a forensic scientist wear?

    A: When entering a crime scene, forensic scientists wear protective clothing over their regular clothes to prevent contamination. This may include a full-body suit with a hood, a mask, booties and gloves.
    See Full Answer
    Filed Under:
  • Q: How do you create a hypothesis about fingerprinting?

    A: To create a hypothesis for fingerprinting, investigators ask questions based on what they know about the specific topic in question and come up with a statement that can be proven through an experiment. Then, based on their prior observations, they develop a statement to test. For example, an experiment on whether fingerprints are hereditary might read "If fingerprints are hereditary, then testing with a fingerprinting kit will show that all members of a family have similar fingerprints."
    See Full Answer
    Filed Under:
  • Q: What is some good information about forensic ballistics?

    A: According to Explore Forensics, ballistics in the area of forensic science deals with firearms as to why and how they are used, most frequently in the practice of murder. Many people do not realize that when a person is shot, the wound and the condition of the victim can tell a lot about the weapon that was used, notes Explore Forensics.
    See Full Answer
    Filed Under:
  • 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.
    See Full Answer
    Filed Under:
  • Q: What is a friction ridge?

    A: A friction ridge is most commonly known as the skin that is found on the palms of the hands and the bottoms of the feet. Fingerprints are another name for a friction ridge.
    See Full Answer
    Filed Under:
  • 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.
    See Full Answer
    Filed Under:
  • 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.
    See Full Answer
    Filed Under:
  • 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.
    See Full Answer
    Filed Under:
  • 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.
    See Full Answer
    Filed Under: