Many who have done a DNA home test begin to question their family heritage and wonder if they might have been misled. However, taking DNA tests from different companies reveal wildly varying results. There are a few reasons for this:
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DNA-testing is done by millions of people all over the world to analyze their DNA and find out where they originate.
Targeted marketing for DNA home-testing kits shows models under the banner “find out your ethnicity” or urges people to book holidays based on their “DNA story”. It’s estimated the industry will be worth £7.7bn by 2022.
Some problems arise regarding DNA home tests about what happens after the results of land.
DNA testing companies often have very few samples from Africa. Some companies are trying to rectify this and have launched a program to encourage researchers to study remote populations and submit their data.
However, questions have been raised about the ethics of European and American scientists collecting genetic information from Africans for economic gain.
Genetics over the last 30 years has revealed that there are no clearcut biological racial categories. Everyone is racialized in some way.
Ancestry is a legacy, not a bloodline. Our genetic script is just one side of the story.
DNA tests are still considered estimates, due to imperfect data.
When a person wanting to give the test provides the DNA sample through the saliva, the company checks for variance in the saliva, as 99.9 percent of the DNA is the same in humans.
Genetics alone cannot explain why some people are fat and others thin. Other factors include what you do and what happens to you. What can be revealed with known genes is in the single digits.