DNA Fingerprints

what is a DNA fingerprint

What does DNA stand for




whats a fingerprint

Fingerprint:An impression or mark made on a surface by a person's fingertip, especially as used for identifying individuals from the unique pattern of whorls and lines.

What is a DNA fingerprint?

DNA fingerprint: is a test to identify and evaluate the genetic information-called DNA(deoxyribonucleic acid)-in a person's cells.

What is DNA fingerprinting used for?

DNA fingerprinting is used for multiple things like, The test is used to determine whether a family relationship exists between two people, to identify organisms causing a disease, and to solve crimes. Only a small sample of cells is needed for DNA fingerprinting. A drop of blood or the root of a hair contains enough DNA for testing.
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How is it done from a vain?

Blood sample from a vein

DNA that is used to establish identity is collected from a blood sample. The health professional drawing blood will:

  • Wrap an elastic band around your upper arm to stop the flow of blood. This makes the veins below the band larger so it is easier to put a needle into the vein.
  • Clean the needle site with alcohol.
  • Put the needle into the vein. More than one needle stick may be needed.
  • Attach a tube to the needle to fill it with blood.
  • Remove the band from your arm when enough blood is collected.
  • Put a gauze pad or cotton ball over the needle site as the needle is removed.
  • Put pressure on the site and then put on a bandage.

were is it tested at?

It is done in special labs

and is done by your doctor.