Genetic genealogy is an attempt to bring hard science to ancestry research, by unravelling the historical information locked up inside the string of "letters" that make up our genetic code. As with any business, there are reputable companies and there are others. A guiding principle is that only in rare cases will genetic tests give you any certainty about your ancestral roots. If a company traces your origins to a village on an island off the coast of Africa, or says you hail from a pillaging Viking, take it with a pinch of salt.Chris Pomery, author of In the Genes, due to be published in May, says genetics has become the third major tool for family historians, after oral histories packaged in anecdotes handed down from older generations, and the familiar paper trail charting births, deaths and marriages. "In specific cases, genetics is a very useful tool, but it is not a panacea," he says. "We're not even close to the situation where, if you're starting to research your family history, you should begin with a DNA test. At £100 or so a throw it's a lot of money, and you can progress your research a long way first for free. "The entirety of the human genome is carried on 23 pairs of chromosomes and it is the smallest of these, the Y chromosome, that is most useful for genealogy. The Y chromosome is only found in males, and because it passes exclusively down the male line, it can be used to check whether someone with the same surname is, or was, a relative.

Nowadays the trend of family tracing is gaining popularity like anything. People are not worrying about the money they spend to gain information about their ancestral roots and genetic relatives. But there is a small issue out here. Many times the inforamtion as provided by the companies are not true to the maximum. There is widespread deviations from the real facts, still prople are queuing for these types of services. But there is a definite success in these services. Government and Police can use such services to track the untraceable criminals, many pending court cases like Rapes, murders etc can be solved in a very short span of time. These can be also used for study on ancient civilizations. There are numerous uses of this type of services.

We can find more information on this interesting topic by just following the following link: http://lifeandhealth.Guardian.Co.Uk/guides/familyhistory/story/0,,2053734,00.Html

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