How DNA Testing Works?
Numerous people have already given DNA testing to be able to know more about their ancestry. Basically, it is now easier to get your hands on these testing kits. In reality, there are more people who’ve used consumer DNA tests than the reports gathered in the years before 2018. Due to the reason that there are increasing number of people believed to use it, it’s projected to boom at around 100 million years just in the next two years.
Without a doubt, the hype is there but the question most people are wondering is how DNA testing works.
Well, there’s no straightforward answer here because different companies have their proprietary algorithms in handling DNA data. On the other hand, there are a number of things that you have to be aware of if you are really interested to try DNA testing. First, let’s begin with the basics, DNA tests can help in revealing secrets or even discover things that you don’t even knew.
Where a person roughly came from, how closely you’re related to other members who are in the database and if you have specific traits are only few of the things that DNA tests can reveal. However, what you are going to get depends on what you’ve ordered but one thing’s for sure, you will learn whether you’re half of something and the other.
The basic building blocks of DNA are the provider’s code and a person’s spit. As for the spit, it’s pretty self-explanatory. What you have to do is to spit into a tube and send it to the provider and after receiving it, it’s their responsibility to extract DNA from the sample and have it digitized so by that, it can be stored in the database and make a profile.
As soon as it is digitized, DNA exists as string of 4 nucleobases of DNA which includes C, G, T and A. This is where the proprietary algorithm of the provider will kick in to carry out DNA testing and it is where things are more complex.
The algorithms are capable of pulling out the C’s, G’s, T’s, and A’s. By finding patterns, they can then derive the meaning. Then afterwards, everything here will remain a secret as each companies have their own pattern-spotting algorithm. The thing is, there are approximately 600,000 positions to which human DNA codes differ and this also referred to as single-nucleotide polymorphisms.
After the DNA testing, it’ll be saved in DNA library along with other DNAs where it can tell where your DNA is found on earth.
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