Doing Science The Right Way
What Does DNA Testing Tell You?
It is now becoming more common to use DNA testing to identify a person’s lineage. By linking maternal DNA and paternal DNA, the ancestry databases can be linked to other people whom you might be related to effectively. This helps in figuring out more about your ancestral origin and at the same time, to know where you came from.
First thing that a genealogist require for DNA testing is father to son linkage which tracks the Y-chromosome that only men have. With this in mind, they will be able to observe the Y-chromosome appearing in people and begin to compare them in order to know where the paternal link could be in. In essence, doing such comparison allows the genealogist to know more about the paternal links among people. Yet another thing that may be done is linking maternal DNA. This is very powerful testing method which enables accurate tracking that can date back several generations due to its mitochondria.
Not like the DNA found in nucleus, it changes as the environment is changing and therefore can be altered, mitochondrial DNA is more of a direct connection from the child to the mother that couldn’t be changed or modified. The genealogists are able to determine the maternal linkage by simply getting a sample of the maternal DNA. By acquiring such information, once again, it lets them find lost cousins or even celebrity ancestors.
Can this be very effective in terms of tracing family line and how they could tell who you are related to? Some websites focused on ancestry create DNA database against yours that can be a match. They save the DNA profile collected by simply getting a mouth swab and run DNA tests. The secret here is comparing the DNA profile of other people consistently to know your profile. In other words, this creates a huge database that helps to determine a piece of code instantly that’s directly comparable to you. With this in mind, when the database keeps on growing, it becomes more useful in linking people to both their relatives and ancestors.
Aside from that, doing the DNA tests helps in showing where you originally came from. It has been said that 170000 years ago, humans migrated their home from Africa. With some went to Southern Africa, Europe and others went to Asia. The DNA tests can show the person’s descendant by comparing their DNA profile to the researched ethnic groups. This is basically why doing DNA testing in finding ancestors begins to attract increasing number of people to give it a try.
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