Investigating Heritage by Testing DNA
The DNA of human beings can be put under test scientifically so as to find out certain information about people. DNA is basically a component of chromosomes found in almost all living things. 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.
One can deduce a lot of information about human beings 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. 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. One can almost certainly rely on the results of paternity tests as the true result.
Other aspects about human beings can be established by testing DNA. They are important phenomena but are not as popular as paternity tests. One such phenomenon is ancestry testing. A genealogical test is the best suited to give such ancestral information. This type of test usually examines a person’s genome after unwinding the strand of a DNA chromosome. Unwinding of the strand must happen for the test to be done.
There are different findings that can be made from genealogical DNA testing. Ethnicity is the first thing that can be known through genealogical testing. 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. DNA testing has been vital in establishing origins of mankind scientifically. 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. Ancestry can thus be established.
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. What part of the body is used during DNA testing? 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. For instance strands of human hair have been found to contain genetic chromosomes that can also encode ancestry genes. Scientists have established that one can uses saliva as well as other body fluids to carry out DNA tests.