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. The initials stand for deoxyribonucleic acid. It is a component of chromosomes that has the ability to self-replicate from one generation of the organism to the other. Relationships among different organisms can be established thanks to the self-replication feature of DNA.
One can deduce a lot of information about human beings from DNA testing. 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 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. 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.
Genealogical DNA testing can help establish different results. Ethnicity is the first thing that can be known through genealogical testing. Tribe is actually the other word formally used for ethnicity. It refers to people of common descent who have one unifying factor such as a common language. Establishing tribe leads to ease of unmasking ancestry.
One can test the origin of certain fossils by testing DNA ancestry. DNA testing has been vital in establishing origins of mankind scientifically. 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. Such fossil remains give ideas about how those people of the past related with modern day human beings. 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? Blood is the most common specimen used in DNA testing in most parts of the world. Blood is however not the only specimen that can help in DNA testing. It is possible to find out a lot of information about human being relationships by using DNA that has been taken from human hair. Sometimes body fluids such as saliva have been found to have DNA than can also be used in genetic relationships testing.