How many steps are there in DNA fingerprinting?

There are about 7 steps in DNA fingerprinting. These steps include: Extraction of DNA from cell: For DNA fingerprinting to be done, samples of DNA must be obtained. DNA samples can be taken from saliva, blood, semen, muscle, cells and other tissues. The blood and cheek swabs are the most common methods of collecting samples.

Cutting DNA using enzymes: Restriction enzymes are used to cut the very long strands of DNA. At this stage, the restriction enzymes are added to the sample. This step takes a few hours to be completed. Separation of DNA fragment: Gel electrophoresis is used to separate DNA fragments into different sizes. The last four steps are: Transfer of DNA to paper, addition of radioactive probe, setting up X ray film exposure and hybridization oven.

Going through the process of DNA fingerprinting is fairly simple on the side of the person having their DNA fingerprinted. This can be important for a variety of reasons, including tracking down lost or deceased relatives, for use in a criminal investigation, or even to help scientists study and find cures for different diseases.

There are a few steps invloved when preparing for DNA fingerprinting. The first step is to collect the DNA. This can be taken either by blood, other bodily fluids or by swabbing the inside of your cheeks to collect cells. Then the DNA is collected by using chemicals to break down the cells and then the DNA is cut into smaller sections to be studied.