The Lewis surname DNA project

Reconstructing the genealogy of a common surname may seem a daunting task. In spite of this, the LEWIS Surname DNA Project has been established in 2003 to gather information from as many Lewis family groups as possible. Since then, the idea has become is one of the larger DNA surname projects, with almost 240 participants.

The website dedicated to promote this project invites all interested Lewises to take a DNA ancestry analysis specifically tailored to this group. under an agreement with a DNA testing company, the test is made available to the interested persons with a substantial discount. This DNA analysis looks for markers located on the Y chromosome, and so it is done exclusively on males.

The aim of the project is to create a basis for identifying participants who share a common male ancestors, and when complemented with documented Lewis pedigrees, these tests can also help to find links between Lewis groups not yet known to be related.

Half of paternity tests negative

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The 50 percent of paternity testing to be performed in the clinical laboratory Patria Rivas prove to be excluded, that is, for every 100 DNA tests revealed that 50 men identified is not the father. The president and technical manager of the institution, Fatherland and Vilma Rivas Diaz, reported that laboratory performs about 800 paternity tests a year, of which about 400 are found to be not Fathers. These tests are a cost of 15000 to 20000 pesos, depending on the social status of the person who requests it. In addition to the institution conducts tests free of charge to institutions like the Conani. The information was provided during a press conference held at the headquarters of the institution to acquaint the country that the American Association of Blood Banks (AABB) granted accreditation to Patria Rivas clinical laboratory testing for paternity. Rivas reported that with this accreditation Dominican Republic became the first country in Latin America to receive such a distinction, which currently has four United States, Canada and the United Kingdom with three one. "The accreditation granted by the AABB to the lab, founded in 1966, means that the Dominican entity is at the laboratories of the world and that conforms to the expectations of quality of the American Association of Blood Banks," Rivas said. He said that the accreditation was granted after an intensive evaluation in the laboratory authorized by advisers of the AABB, stating that the level of operational resources professional, technical and administrative exceed the standards set by the international entity. In addition to having a leading edge technology. The AABB is an international membership organization, nonprofit dedicated to advancing continuously in the field of transfusion medicine, biologic therapies and tests related affiliation or paternity.
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Paternal Ancestry Test using Y-STR DNA markers

A Y-STR DNA test can be employed to confirm your relationship to relatives and paternal ancestors. This DNA test can be used too to obtain evidence in paternity cases where an alleged father is not present. It can be performed to see whether or not a child is a relative of the alleged father's brothers or other male. The genealogy DNA test represents the fact that the Y chromosome is inherited from the male parent to son with no modifications after many generations.

This mode of inheritance reflects the mode of surname propagation in western cultures, where the children acquire the surname of the father. For this reason the test is known as "Surname DNA Test." Women interested in knowing their paternal ancestry can also indirectly participate in a Y-STR DNA test. For that, they need that a biological male relative (father, brother, uncle, grandfather) provides a sample to be comparedwith her potential paternal ancestor.

In a test like the Y-STR DNA test, some molecular regions of the Y chromosome are examined and a Y-STR profile is produced for each of the males tested. If a male is related through their fathers, he will show a very similar Y-STR profile. Through some companies offering these ancestry tests, you can have your DNA profile entered into a database that will allow finding matches or possible relatives and thus providing a way to expand your universe of known relatives to unexpected levels.