Why Don’t Your Ancestry Results Show Native Black American Ancestors? | Black People Ancestry
Many Black people in the United States were told by their parents and grandparents that they were native Black Americans. In other words, they did not come from Africa as slaves, but already lived in America before even the Europeans came. However, after getting an ancestry test, it becomes hard to believe they had native Black American ancestors.
It’s because the results show they have mainly African roots. That’s when Black people get disillusioned, thinking that they really are from Africa and that their parents lied to them.
However, that’s not true. No one lied. The problem lies in the ancestry test. Because it has become a belief that all Black people are from Africa, the ancestry test focuses more on proving this belief right, ignoring other traces. Yet, most tests show 0.8 percent Native American ancestry. So, is it possible that the ancestry test you are getting is wrong and is missing something?
Many Black Americans who trace their lineage to Native Black Americans might find that their ancestry DNA results do not show Native American heritage. This absence can be confusing, especially for those with family histories or cultural ties indicating Native American ancestry. However, not seeing Native American DNA in the results doesn't necessarily mean they aren't descendants of Native Americans. This phenomenon can be explained by the genetic process of recombination, which occurs during the formation of sperm and eggs in each generation.
Each person inherits half of their DNA from their mother and half from their father. During the formation of sperm and eggs, chromosomes undergo recombination, meaning the chromosomes from the parents are shuffled and recombined in a random manner before being passed on to the offspring. This shuffling can result in the mixing and sometimes the loss of specific ancestral DNA segments over generations.
Because of recombination, not all DNA from distant ancestors is passed down to every descendant. Over multiple generations, certain segments of DNA can be lost simply due to the random nature of recombination. Thus, even if someone has Native American ancestors, the specific genetic markers indicating Native American heritage might not be present in their DNA.
Ancestry DNA tests analyze specific markers in the genome to estimate ethnic origins, comparing an individual's DNA to reference populations to determine likely ancestral backgrounds. However, these tests have limitations. The accuracy of these tests depends on the quality and diversity of the reference populations. If the reference population for Native Americans is not comprehensive, it can lead to underrepresentation in the results. Over time, certain genetic markers can become less prevalent or even disappear in small, isolated populations due to genetic drift (random changes in allele frequencies) or bottleneck events (drastic reductions in population size).
Considering these factors, a person may have Native American ancestors without having detectable Native American DNA markers. This situation is particularly common among Black Americans due to the historical and complex intermixing of African, European, and Native American populations in the United States. For example, if a person’s Native American ancestor was several generations back, the specific genetic markers from that ancestor could have been diluted through generations of recombination. As a result, a modern descendant might not inherit those specific markers, even though they are indeed part Native American by ancestry.
Understanding DNA inheritance can help clarify why many Black Americans, who trace their lineage to Native Black Americans, might not see Native American heritage in their ancestry DNA results. Despite family histories or cultural connections suggesting Native American ancestry, the absence of Native American DNA markers doesn't necessarily mean they aren't descendants of Native Americans. This can be explained by the genetic process of recombination during the formation of sperm and eggs in each generation.
You inherit half of your DNA from your mother and half from your father. However, this doesn't mean you get an even split of all their genetic material. Instead, you get a random 50% of their genetics. For instance, if one parent has 50% genes for black eye color and 50% for brown, you might receive a mix, such as 25% black and 25% brown. This randomness in DNA inheritance means that over generations, certain DNA segments, like those indicating Native American heritage, can be lost.
During recombination, the chromosomes from your parents are shuffled and recombined before being passed on to you. This process can result in the mixing and sometimes the loss of specific ancestral DNA segments.
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16 окт 2024
