Explain DNA Fingerprinting.
& What is it's aim??
Answers
✦✧✧ Answer ✧✧✦
DNA fingerprinting is a laboratory technique used to establish a link between biological evidence and a suspect in a criminal investigation
to direct a course
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DNA fingerprinting is a laboratory technique used to establish a link between biological evidence and a suspect in a criminal investigation. A DNA sample taken from a crime scene is compared with a DNA sample from a suspect. If the two DNA profiles are a match, then the evidence came from that suspect.
Uses
Since it was invented in 1984, DNA fingerprinting most often has been used in court cases and legal matters. It can:
Physically connect a piece of evidence to a person or rule out someone as a suspect.
Show who your parents, siblings, and other relatives may be.
Identify a dead body that’s too old or damaged to be recognizable.
DNA fingerprinting is extremely accurate. Most countries now keep DNA records on file in much the same way police keep copies of actual fingerprints.
It also has medical uses. It can:
Match tissues of organ donors with those of people who need transplants.
Identify diseases that are passed down through your family.
Help find cures for those diseases, called hereditary conditions.
Fingerprint Test
To get your DNA fingerprint, you would give a sample of cells from your body. This can come from a swab inside your mouth, from your skin, the roots of your hair, or your saliva, sweat, or other body fluids. Blood is usually the easiest way. Lab workers treat the sample with chemicals to separate the DNA, which is then dissolved in water.