Investigating Heritage by Testing DNA
Science has enabled the DNA of human beings to be tested for various reasons. DNA is basically a component of chromosomes found in almost all living things. The initials stand for deoxyribonucleic acid. DNA can replicate to the unborn young one of a living organism of the same species. Replication enables people to be able to use DNA as a method for testing for relations withing living beings.
A DNA test can help to unearth many things about living organisms especially human beings. The most common of them is paternity testing. The number of cases that need paternity tests make this type of DNA testing quite popular. DNA paternity tests are tests done on a child and a man to test whether the child is actually a biological child of the man. 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. They are important phenomena but are not as popular as paternity tests. Ancestry is one relationship that can be established using DNA testing. This can be done using a genealogical DNA test. The genome of a person is examined form a DNA strand to establish ancestry. Unwinding of the strand must happen for the test to be done.
There are different findings that can be made from genealogical DNA testing. The first one is ethnicity. This is basically the tribe from which a person comes from. Tribe refers to lineage descent from common ancestry. Ancestry can easily be deduced by establishing tribal lineage.
One can test the origin of certain fossils by testing DNA ancestry. The origin of man has been an ongoing investigation in which scientists use DNA testing to find out more about it. 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. This helps in establishing lineage and ancestry.
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? Most countries in the world use blood as the specimen for any kind of DNA testing. It is not blood only however that can be used to deduce DNA encoded information. 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.