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. The term DNA actually refers to a part of chromosomes of living organisms. 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. 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. 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 paternity tests are actually very reliable the world over.
There are other phenomena about human beings that can be established using DNA testing. They are important phenomena but are not as popular as paternity tests. One can establish the ancestry of human beings using DNA tests. This can be done using a genealogical DNA test. Ancestry in a genealogical test is established using genomes from DNA chromosomes. Unwinding of the strand must happen for the test to be done.
Genealogical DNA testing can help establish different results. First of all ethnicity can be established. Tribe is actually the other word formally used for ethnicity. Tribe refers to lineage descent from common ancestry. Ancestry can easily be deduced by establishing tribal lineage.
Fossils can be tested using ancestral DNA testing. 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. They use DNA testing to further investigate relationship of such remains with the modern world. Ancestry can thus be established.
The geographical origin of any species can be established by using genealogical tests. The age of remains of human beings can also be established though with approximation from such genealogical DNA tests. So, which part of a human body can be used during the DNA testing process? Well, most times, blood is used in DNA testing. 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. There are some body fluids like saliva that scientists posit that they can be used successfully to generate enough chromosomes for DNA testing.
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