Investigating Heritage by Testing DNA
It is possible to test human DNA to establish different aspects using science. The term DNA actually refers to a part of chromosomes of living organisms. The full meaning of the letters DNA 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.
There are many things that can be established from DNA testing. Among this things is paternity tests which are very common. Cases that require paternity testing in the world are many hence the popularity of this type of DNA testing. Tests for paternity basically seek to establish if a man is biologically the father of a given child. DNA paternity tests are actually very reliable the world over.
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. DNA strands are usually unwound during testing.
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. Tribe refers to lineage descent from common ancestry. Establishing tribe leads to ease of unmasking ancestry.
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. Such fossil remains give ideas about how those people of the past related with modern day human beings. Ancestry can thus be established.
Genealogical tests can also help in detecting geographical origin of a species. It can also give evidence of age of any remains of human beings. What part of the body is used during DNA testing? Most countries in the world use blood as the specimen for any kind of DNA testing. However, there are other parts of the body that can be used in place of blood. 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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