Investigating Heritage by Testing DNA
Science 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. The initials stand for deoxyribonucleic acid. DNA can replicate to the unborn young one of a living organism of the same species. Relationships among different organisms can be established thanks to the self-replication feature of DNA.
There are many things that can be established from DNA testing. One of such things is paternity of a child. The number of cases that need paternity tests make this type of DNA testing quite popular. Tests for paternity basically seek to establish if a man is biologically the father of a given child. DNA testing is an almost 100% certain test for paternity in the world today.
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. Ancestry is one relationship that can be established using DNA testing. A genealogical test is the best suited to give such ancestral information. The genome of a person is examined form a DNA strand to establish ancestry. DNA strands are usually unwound during testing.
Genealogical DNA testing can help establish different results. The first one is ethnicity. This is basically the tribe from which a person comes from. Tribe refers to lineage descent from common ancestry. Establishing tribe leads to ease of unmasking ancestry.
Fossils can be tested using ancestral DNA testing. Scientists have been working hard to establish many aspects of the origin of man. Since remains of mankind have been located in different parts of the world, scientists have had to find means of testing them for ancient information. 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? Well, most times, blood is used in DNA testing. 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. Scientists have established that one can uses saliva as well as other body fluids to carry out DNA tests.