DNA Ancestry TestingScience has enabled the DNA of human beings to be tested for various reasons. The term DNA actually refers to a part of chromosomes of living organisms. DNA in full is deoxyribonucleic acid. It is a component of chromosomes that has the ability to self-replicate from one generation of the organism to the other. Relationships among different organisms can be established thanks to the self-replication feature of DNA. A DNA test can help to unearth many things about living organisms especially human beings. Among this things is paternity tests which are very common. Cases that require paternity testing in the world are many hence the popularity of this type of DNA testing. Tests for paternity basically seek to establish if a man is biologically the father of a given child. DNA paternity tests are actually very reliable the world over. It is possible to establish other relationships of humans using DNA. Some of these relationships are not common though quite important. One can establish the ancestry of human beings using DNA tests. Ancestral information can be well established by using genealogical tests. This type of test usually examines a person’s genome after unwinding the strand of a DNA chromosome. DNA strands are usually unwound during testing. Several results can be deduced from genealogical DNA tests. The first one is ethnicity. Ethnicity in this context refers to the tribe. Tribe can be understood in different contexts though in most instances it refers to people with the same ancestry and speaking the same language. Establishing tribe leads to ease of unmasking ancestry. Ancestry testing can also be used to test fossils. Scientists have been working hard to establish many aspects of the origin of man. By locating any remains of people in different locations on planet earth, they can have leads to such information. Such fossil remains give ideas about how those people of the past related with modern day human beings. Such facts can then lead us to conclusive information about ancestry. Ancestry testing can establish geographical origin of a species. It is also possible to find out how old fossil remains of human beings are by employing the genealogical DNA testing technique. How does DNA testing happen and which part of the human body can be used for chromosome extraction and testing? Well, most times, blood is used in DNA testing. However, there are other parts of the body that can be used in place of blood. In many cases for example human hair has been used to carry out DNA tests about different aspects correctly. There are some body fluids like saliva that scientists posit that they can be used successfully to generate enough chromosomes for DNA testing.