DNA Testing In Genealogy Research – To Help You Look Back
The human body has over 60 cells. White blood cells, Cheek and muscle cells are also included in this. Deoxyribonucleic acid (DNA) information is present in each of these cell structures. The autosomal DNA, X chromosomal DNA and Y chromosomal DNA or just the DNA is present inside the research sample paper cell’s nucleus. Mitochondrial DNA (mtDNA) is held in the nucleus’s outer part. Both the father and mother contribute for the autosomal DNA. A son inherits the Y chromosome from his father while the mother is responsible for the mtDNA.
Many improvements have been made in DNA research to help the various fields. For instance, they are used to prove the paternity or to find criminals. Nowadays even genealogy researches take the help of DNA testing.
For the last few years, genealogy research has evolved to become a major part of the society and the much preferred hobby of enthusiasts. But at time this can frustrate even the expert genealogists no matter how rewarding it may be. Paper research in this field can be time consuming work. Very often it leads to damaged documents and illegible handwriting. DNA testing gives instant results and there is no need to doubt its quality or authenticity. And at the same time the results of genetic genealogy can stand against the test of time.
1. The maternal background of a person can be traced by mitochondrial testing. This is very important because when it comes to mtDNA testing the genealogists are normally females. Their maternal lines are usually lost because of the change in surname after marriage. With the help of this it will be easier for them to learn about their maternal background.
Many improvements have been made in making genetics easier to understand and in using the lab techniques to help someone find their maternal line using mtDNA tracing. The lost ancestry line can be found out by testing the mtDNA of the person and comparing it with the database of mtDNA samples.
Even after many years the mtDNA remains unchanged. You may share the exactly same mtDNA with your mother, grandmother and great-grandmother). Using the mtDNA code you can track your maternal heritage right from the place where the first mutation of your mtDNA occurred.
Through mitochondrial eve or by natural mutation, today, women can retrace their origin 150,000 years ago. The common ancestor is eve in association with matrilineal descent. This doesn’t not mean that the only women who lived during that era were eve. There were many other women. But it was only eve’s lineage which survived.
The most commonly used form of testing in respect to genetic genealogy is the Y chromosomal DNA testing. You can even find out if you are related to a deceased man through this test.
Just like mtDNA the Y chromosomes are traced right from its father, Adam. The first DNA mutation of Y chromosomes occurred over many years. Your paternal line can be traced by comparing your Y chromosomes with those available worldwide Y database.
Genealogists can also find out the relation between two people if they have the same surnames. This possible since in almost all cultures the children inherit the surname from the father just like they inherit Y chromosomal DNA