DNA Ancestry Testing
Science has enabled the DNA of human beings to be tested for various reasons. A part of chromosomes found in living things is actually what is referred to as DNA. DNA in full is deoxyribonucleic acid. Replication is the unique thing about DNA since it can be passed from one generation of a species to the next. This self replication feature is what makes it possible to use DNA as a form of testing for various relations in living organisms.
There are many things that can be established from DNA testing. One of such things is paternity of a child. This is because there are very many situations in the world that require for testing for the paternity of a child. Paternity testing involves testing a child and the man separately to find out if the man is the biological father to the child. DNA testing is an almost 100% certain test for paternity in the world today.
It is possible to establish other relationships of humans using DNA. Some of these relationships are not common though quite important. Ancestry is one relationship that can be established using DNA testing. This can be done using a genealogical DNA test. Ancestry in a genealogical test is established using genomes from DNA chromosomes. For this to happen, the strand is unwound at a specific position.
Several results can be deduced from genealogical DNA tests. The first one is ethnicity. Ethnicity in this context refers to the tribe. It refers to people of common descent who have one unifying factor such as a common language. Having established which tribe one comes from, it is then easy to use the information to establish the ancestry of the person.
One can test the origin of certain fossils by testing DNA ancestry. Scientists have been working hard to establish many aspects of the origin of man. Remains of human beings form an important parcel in this investigation. For the information to be complete, DNA testing must be done on such remains to establish any similarities with currently living people. Ancestry can thus be established.
Ancestry testing can establish geographical origin of a species. It can also give evidence of age of any remains of human beings. So, which part of a human body can be used during the DNA testing process? Blood is the most common specimen used in DNA testing in most parts of the world. It is not blood only however that can be used to deduce DNA encoded information. It is possible to find out a lot of information about human being relationships by using DNA that has been taken from human hair. There are some body fluids like saliva that scientists posit that they can be used successfully to generate enough chromosomes for DNA testing.