DNA is a very complex subject and various types of DNA tests are used for a number of reasons. So first of all we should clarify that here we are talking about the Y-chromosomal DNA (Y-DNA) test.

The Y-chromosome is always transmitted largely unchanged from a father to his sons, this is not a theory, it is a fact. Using DNA as an aid to studying genealogy is a good thing, and it works, because it is a proven scientific procedure. Thus by studying one's Y-DNA one learns about one's direct line of male descent.

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Many times in the process of searching through our family histories, we reach points where assumptions have been made regarding the family lineage. The presence of indiscretions within a family may be omitted or covered-up, depending on the era when they occurred. Recent studies that we have participated in have both verified and denied male lineage. However, when you really want to know, Y chromosome testing may be the best new technology available to answer that question.

Patrick Williams, Ph.D.
Scientific Director Benchmark Genetics