The likelihood that we will match other individuals with 12 markers is far greater than matching on 25 or 37. This is valid whenВ comparing our matches on 12, 25 or 37 markers. Those would be the ones that are closely related to us.

But if on the other hand when we test many markers, we will match very few people that share those same markers. In other words, to go to extremes, if we tested only one marker, we would most certainly match with millions of individuals that shared that marker for thousands of years. Since we all descend from one person and then from a few families, and as times goes by those families keep branching out up to the point where we get to our own family nest, it would be natural that when weВ compare our DNA, the fewer markers we compare, the less unique they are, and the more markers we test, the more unique the whole string of markers is. The degree of relatedness depends on the time frame or the number of generations between the participants and the common ancestor. When we use the term recently related, we are talking about a time frame within the last 1000 years or 40 generations, aВ period that includes the earliest known use of surnames.ДЄccording to current theories, we are all related and descend from one single person. If you compare the 12 marker result to someone else who does not have the same surname, but the scores match, you are most likely NOT recently related. If you compare a 25 Marker result to another 25 marker result for the same surname and the results match 25/25, then there is also a 99% confidence that the two individuals are related and at a much closer time interval than with the 12 marker test. If the match is 11/12, thereвЂ™s still a high probability that you are relatedВ if the 11/12 match is within the same surname. When you compare a 12 Marker result to another 12 marker result of someone with theВ same surname and the results match 12/12, there is a 99% probability that you two are related within the time frame included in the MRCA tables. The 12 Marker result from the Y-chromosome test is called a Haplotype and can help determine if your DNA sample is common or uncommon. Just as there are surnamesВ that are very common (such as Smith and Jones) and surnames that are uncommon, there are Haplotypes (a set of results that characterize you on the Y-chromosome) with a high frequency of occurrence (aka common) and Haplotypes with a low frequency of occurrence (aka uncommon).

Wgat do my dna matches mean