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What instrument is used to analyze evidence?
A microscope is commonly used to analyze evidence in forensics, such as hair, fibers, and blood samples. Other instruments, like spectrometers, chromatographs, and DNA sequencers, may also be used depending on the type of evidence being analyzed.
What are 3 reasons hair makes good evidence?
Hair contains DNA which can be used for identification purposes. Different individuals have unique hair characteristics such as color, texture, and structure, making it possible to differentiate between individuals. Hair is resistant to decomposition and can be found at crime scenes, providing valuable forensic evidence.
How did caveman shave?
Cavemen likely did not shave as we do today, as evidence suggests that facial hair served a protective and possibly even social function. They may have used sharpened stones or shells to trim their hair or facial hair when necessary.
What is the ion switch on a hair dryer used for?
Apparently ions help the hair dry faster with less heat, which can damage hair. I'm not sure there's a lot of evidence to support it, though.
What two reasons are why hair is used for evidence?
Hairs can be used to detect DNA of the killer or to identify the victim. Hairs can also be tested for poison.
Are pigtails recommended to help grow hair?
For women of all ages, pigtails are a practical style that help to keep hair healthy. However, there is no evidence that any style of hair can be used to actually help hair grow faster or in greater volume.
Why can the presence of hair at a crime scene associate a suspect or victim with the crime scene?
Hair found at a crime scene contains DNA, which can be compared to a suspect's or victim's DNA to establish a link. Hair also has unique characteristics like color, length, and treatment, which can be used as evidence in investigations. Analyzing hair evidence can help to identify individuals present at the crime scene.
When is hair considered direct evidence?
Hair is considered direct evidence when it can be definitively linked to a specific individual through DNA analysis. This typically requires a root or follicle attached to the hair shaft for successful identification.
Is there any evidence of cellular structure in human hair?
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Crime scene hair is what type of evidence?
DNA
What evidence can be used for DNA fingerprinting at a crime scene?
DNA evidence from blood, hair, saliva, or other bodily fluids found at the crime scene can be used for DNA fingerprinting. This evidence is compared to the DNA profiles of suspects to determine if a match exists, helping to identify or exclude individuals involved in the crime.
Which part of the hair do get DNA evidence from?
Root of the hair containing protoplasm
