GenealogyDNA.com

With genealogy DNA testing, a person or family can trace back their heritage or lineage to who their ancestors were and where they came from. The way this is accomplished is by examining the different nucleotides on the DNA sample and where they are located on the strain.

Unlike other DNA testing results, this is for ancestral heritage only. The DNA testing for medical purposes that include genetic diseases and disorders is not what this test will uncover.

The testing of DNA for genealogy purposes involves identifying certain nucleotide markers from the current sample with those in a historical database that contains ancestral populations from the distant past.

For males, both the father’s and mother’s ancestral lines can be explored, while for females, only their mother’s ancestors can be uncovered. This is because males have both the Y DNA chromosome and the mt DNA chromosome.

The Y chromosome is the genetic marker that is passed down from father to son and is unchanged. This is the path that can be followed for both the surname ancestral path and genetic markup. If a female wishes to know their father’s lineage, a sample from their brother, father, uncle, or grandfather can trace back the Y chromosome line of heritage. In time, this genetic marker changes slightly so perfect matches over thousands of years is unobtainable.

The mtDNA is the genetic marker every mother passes down to their children. This is for both males and females the woman gives birth to. Unlike the Y DNA, the mtDNA does not change over time and perfect matches with samples thousands of years old is very common.

This is a general description of the potential a person can expect when they have genealogy DNA testing done when looking into the past history of their family.

Thinking of DNA testing, wiki is where a great number of people are finding some of the answers they are looking for. This on-line encyclopedia is a valuable free source of information available to the world.

This particular topic has a very good and in-depth article. Right in the beginning, it becomes clear that with genealogy DNA testing a person or family can trace their family roots back through the generations.

For those looking for information on genetic diseases or genetic disorders, there is little to no information that could be helpful. There is some known information that might be discovered when an analysis is done to a DNA sample, like when a specific marker is missing.

There are also commonalities of specific haplogroups for long life and other characteristics. But this is not the purpose or scope of this type of testing. Its main purpose is for genealogical research of a family.

The number of markers that are tested determines the accuracy of the testing. There is a 12 marker testing, 37 marker testing, and a 67 marker testing. With an increase in markers, there is a more accurate confirmation of the testing results. An example is if a 12 marker test was conducted on a sample. A test that matches back 7 generations would have a 50% likelihood of a match. With 67 markers tested, the results would be at 95% accurate.

With the ease at which the sample can be taken, from the inside of the cheek, and the relatively low cost which can be below $500, the popularity of this type of analysis is on the rise. This has lead to a rise in DNA testing. Wiki is a great source of general information.

Do be aware that the information shown on a Wiki is provided by volunteers and it may change at any time. Do your homework. For more even details, a dedicated site on this topic like this one is preferred by many.

In 1997, the Neanderthal DNA test became a reality when DNA from the remnants of a Neanderthal was successfully extracted from the right humerus of a known Neanderthal skeleton. These remains were found in a cave in the Neander Valley in Germany. The bones itself were recovered in 1856 and are the property of the Rheinisches Landesmuseum in Bonn.

Of the 3.5 gram sample that was taken, 379 different amino acid pair sequences were identified. What was found out was the Neanderthal DNA had 27 differences between itself and modern Homo sapiens.

With this information, it was determined that the Neanderthals and Homo sapiens had a common ancestor nearly 550,000 to 690,000 years ago. The two species then independently developed but still had limited contact with each other. There is evidence of trading between the two species as recent as 34,000 years ago in the remains at Arcy-sur-cure France.

The newest Neanderthal remnants are only 30,000 years old. The reason for their demise is still unclear, but remains found in a Croatian cave that was 38,000 years old showed signs of cannibalism.

It is thought that interbreeding of modern Homo sapiens and Neanderthals occurred between 45,000 and 80,000 years ago which is why there are remnants of their DNA in modern man. In 2010, it was reported that 1 to 4 percent of all non-African descendants have Neanderthal DNA present in their genome.

One of the commonalities of modern man and Neanderthals from the DNA is the ability to taste bitter objects, while 25% of modern humans cannot. This is thought to be an advantage since a bitter taste is associated with the toxicity level of many plants.

More and more is being discovered all the time. Since the first sample was extracted in 1997, more than 62,250 units have had a Neanderthal DNA test conducted on them and established their identity. In time, more commonalities will be released to the public.

DNA Genealogy is basically another term for DNA testing. Usually DNA testing is done for catching criminals and solving other kidnapping cases. But, Genealogy DNA is used to find out what the possible relationship is of one person with another or for finding the ancestors.

The first Genealogy study was conducted in 1980s at the University of California, Berkeley. The scientists involved in this discovery are Rebecca L. Cann, Mark Stoneking and Allan C. Wilson. They discovered a new type of DNA named mitochondrial DNA which is present in the cell. It is passed on from mother to her child. The other DNA, Y chromosome, is

present in the nucleus of the cell is passed on from father to son.

These are the two type of DNA which mostly tells about our ancestors. It also tells about the tribes and the place of origin of our maternal and paternal lines. Scientists have studied a lot about evolution and have now concluded that we all came from one common ancestor called Adam and Eve. No doubt, there were other men and women also but it was only Adam and Eve who survived.

DNA Genealogy has helped a lot in solving different things. It is an interesting topic for scientists. They do new researches like finding out the people related to the famous personalities like George Washington, Julius Caesar or Genghis Khan. Scientists have produced human archeological record. Doctors have found DNA Genealogy useful for finding hereditary diseases and cure. DNA testing has a strong ability to reunite the families as it is 100% accurate and without any duplication. The best part is that it is helping in reduction of criminals in the society by solving maximum criminal cases.

To cut the long story short, I just want to say that DNA Genealogy which is related to DNA testing is the biggest discovery ever made in the field of medical science.

The Rootsweb Genealogy DNA ancestral community believes in helping people trace their genetic roots back in time. There are many options a person can use on this website, including many contacts with people that have the same interest in extending their knowledge of their family tree.

By simply entering a surname and location, if possible, a list of members will be generated with contact information. To help people narrow down their search after the surname is the approximate date in which the family tree is traced back to. As an example, the name Ricketts has members that have traced their family tree back to 1550. This tree is followed all the way up into current times.

Also included in this brief introduction of names and times is the migration route the family took to reach America or their migration across America.

This is the site to visit and join if you wish to share the knowledge you have obtained about your family tree. You can also find assistance in locating your past with help from other members. Today, there are hundreds of gigabytes of data on the site only involving the tracing of thousands of family trees.

There are literally millions of online genealogy researchers sharing information on this site, all contributing with the same goal in mind, finding their past and sharing it.

At the present time, there are 1,211,559 different surnames registered on the site. The submissions have been done by 303,651 different online genealogists that have voluntarily offered their information and research. This brings the total number of family tress or ancestral names up to 372,595,410.

The Rootsweb Genealogy DNA data base is a great place to start your search through the past or share the knowledge you have already obtained.