An Overview of DNA Testing

submitted: Aug 28th 2008 | by: RayLam | Total views: 1 | Word Count: 311 | PDF View | Print Article

DNA or Deoxyribonucleic acid is the genetic material present in the cells of a living being. Every nucleated cell has 46 chromosomes, apart from the sperm cells from the man and the egg of the woman that only contain 23 chromosomes.

One of the most well-known DNA tests is a paternity test. Paternity DNA testing is used to establish if a man is the biological father of a child. This test is most often performed when a man denies paternity. Sometime he truly believes that he is not the father of the child, and other times he just does not want to be financially responsible for the child.

A variety of DNA testing protocols are used worldwide. They analyze a small portion of DNA that varies from person to person. Tests are conducted using molecular methods such as a polymerase chain reaction or with DNA arrays and DNA chips.

DNA testing is a very simple and affordable process. Various stages are involved in DNA testing. It is necessary to obtain the DNA samples that have to be verified. DNA testing requires only a few drops of blood or cheek cell specimens obtained by rubbing the inside of the mouth with a swab. Most companies provide a free kit to collect these samples at home.

Even though DNA testing requires a lab, somewhat sterile conditions and expensive equipment, it is available to everyone through a DNA testing kit. You can buy the kit online or at the local drugstore. Swab the cheeks of the people being tested and mail the kit in to the lab. The results are mailed to you in just a few weeks. However, if you need to prove a DNA relationship for a legal purpose such as establishing paternity) you will be to be tested in person by laboratory employees who observe a legal chain of custody with the samples and results.

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Learn more about DNA Testing by visiting http://dna-testing-tips.info, a popular website that provides free dna testing tips,advice and resources.


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