Posts Tagged ‘Genealogy DNA’

DNA Genealogy Testing

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

DNA Genealogy Testing

DNA Genealogy Testing


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.

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The Limits of Ancestral DNA testing

Genealogists turn to ancestral DNA testing to answer questions that historical records alone cannot.  All people of the world have DNA so it makes sense they would form a large information base about the evolution of humans.

It isn’t necessary to test every member of a family to learn their origins.  Women carry mtDNA because they lack the Y chromosome that men have to determine the male gender.  Brothers and sisters share the same mtDNA and brothers share the same Y DNA.   MtDNA yields information about the maternal line of a family.  Mt is short for mitochondria present in both men and women.  Y DNA tests the paternal line.

Here is what you can learn from a DNA test for ancestry:

Do your ancestors originate from Europe, or the farmers from the Middle East?  Europeans came from seven maternal clans and your DNA can spot the markers that show the specific area of Europe where your mother’s family originated.

Even if you are Caucasian you may discover a bloodline that points to Africa and the oldest human population from 100,000 years ago.  Some of the early tribes are the Bantu, Ibo and Kung.

Native Americans are predominately from four clans which migrated from the Old World.  Native Americans today seek to know which modern tribe they are from and DNA evidence of early tribal migration narrows the focus of an otherwise broad population sample.

Some families today are conducting surname projects to learn the origin of their last name.   Whether the name is Jones or Andrianopoulos, families want to know who they are related to around the world.

The human race has been mixing since it evolved in Africa 150,000 years ago.  You may find identifying markers from several groups that don’t seem connected because of the constant evolution of families.  If you’re looking for many answers to specific questions, proceed with ancestral DNA testing with an open mind.  Collectively the more people that do have genealogy DNA testing performed will help to grow the database for the overall study.

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How to Do Genealogy Research Online

OK, so you know about DNA testing to discover your father and mother’s deep ancestry, now how to do genealogy research online will be covered.

Many of you will be very familiar with all of these methods, but for those of you that are just starting on creating a family tree these ideas should help to get you started.

You should always start with yourself and work backwards through your ancestors locating as much information on each generation as you can before you move on the earlier ones.  More time is lost trying to make a connection with some famous person that you were told you might be related to.

Well that may turn out to be right but in order to do this thing right you have to take one step at a time and document all of your research.  When you find something that is helpful you should record it in your journal or notebook and then enter the information into your computer genealogy program.

The notebooks should have their pages dated as you enter details that way you can always return to them at a later date when you find another piece of the puzzle.

Some of the most helpful websites that you will use are actually free and you will spend many hundreds of hours online before you will have to shell out any money for online subscription websites.

The Church of Jesus Christ of Latter Day Saints, (LDS) or the Mormon Church, owns the worlds largest accumulation of documents in digital and microfilm formats.  Their main library in Salt Lake City, Utah is free and open to the public and no one will try to convert you, it is just a library.  Millions of rolls of microfilm are at your fingertips and you will find everything from church records, civil records, local histories, census records, marriage records, cemetery records and everything in between.

LDS also has Family History Centers (FHC) in a Mormon church near you.  These smaller branch libraries have access to most of the materials that are at Salt Lake City either by computer or by your renting the microfilm to use at the local FHC.

To find out what they have available you may use any computer on the internet and go to www.familysearch.org to go to the main website.  From here you can do some actual personal name searches and see if any of your ancestors have had their information extracted from primary record collections and added to the online database.

This is only one small part of what they have available as most of the records have not been transcribed and digitized yet, so in those cases you will want to click on the library button and then go to the library catalog, and do a surname search or a location search to see what they have in their index and then you will know which film to order.

Another great resource that is free is the huge accumulation of extracted records and queries from other researchers that is online at rootsweb.com.  This site is one of the oldest on the web and was operated by volunteers at the beginning until recent years when it was purchased by ancestry.com.  Rootsweb is still free to use.

The USGenweb.com site is also free and you will find many exciting discoveries there.  My recommendation is to go down to each state/county level for the individual county Genweb sites where you will find cemetery records, maps, documents, bible records and untold wondrous things.

Do not overlook online newspaper collections.  Check for newspapers that were in operation in the areas where your ancestors lived.  Many of them have online access to the historical editions but you will have to search around and ask questions.  You will want to read the article: “21 Ways to Start to Build Your Own Family Tree at old-newspaper-articles.com.

Later on as you become more advanced and after you have tested your Genealogy DNA you will no doubt want to subscribe to places like ancestry and genealogybank, but for now you should have fun starting with just the free information above.

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Understanding Genealogy DNA

Another name for genealogy DNA is molecular DNA because that is where the science of family begins.  Until the late 1980s the only tool available for people seeking information about their ancestors was historical records and the remembrances of grandma and grandpa.  You might be able to recall the names of your grandparents, but do you know the names of your great-grandparents?  Precisely.  Few people do.  Advances in DNA typing are filling in the blanks.

Almost all cells in the human body contain DNA, deoxyribonucleic acid.   DNA is a string of proteins that tell our bodies how to grow; whether to have blue eyes or brown, whether to have a predisposition to heart disease or cancer. It is the complete genetic blueprint of people.  It makes each of us unique but also similar to our parents and ancestors.

There are two types of cells used to map out genealogy, Y-Chromosome DNA, and Mitochondrial DNA or mtDNA.  The Y chromosome exists in men and is passed down from fathers to sons.  Women don’t have a Y chromosome and thus cannot be tested for their paternal heritage.  Men can know who was their father’s father, and on and on through hundreds of generations.  Generally the paternal line can be tested to the origin of the surname, although some African-Americans have surnames dating back just to the 19th century.

Mitochondrial DNA is the opposite of Y-DNA and is passed down from mothers to her offspring of both genders.  The difference with this kind of DNA is that both men and women have it and can be tested for it.  Therefore, a man can learn about the ancestral lines of his mother and his father, but women can only know the lines of their mother.  In order to learn information about their father’s ancestry, they have to have their father, brother or male cousin tested.

Despite the limits of DNA testing for women, mitochondrial DNA has a slower rate of mutation than Y-DNA.  The results of clean strains cover more years.  While Y-DNA may go back for 12 generations, Mitochondrial DNA can reflect 30 generations or more.
When scientists test DNA for genealogy they assign letter values to “markers” which are specific spots on a microscopic strand of DNA.  The values reveal a pattern that shows similarities to other people in DNA data bases.  Some strands have fewer mutations or differences, and the more you have in common with others in the DNA databases, the more likely they are to have a common ancestor with you.

One of the limits of Mitochondrial DNA is that the mitochondria exist in the cytoplasm of the cell instead of the nucleus.  As stated before, mtDNA mutates very slowly.  When scientists find an exact match it is difficult to know if the common ancestor lived recently or hundreds of years ago.

One famous use of mitochondrial DNA involved the identification of the Russian Royal family.  Czar Nicolas, his wife and their five children were all executed by the Bolsheviks in 1919.  For nearly 100 years their fate was not known however with the fall of the Soviet Union a search for the bodies unearthed the probable graves.

Prince Philip of England provided a DNA sample in which mtDNA was extracted to determine if the Russian Royals were within the newly discovered graves.  Prince Philip shares the same maternal line as Queen Victoria, as did Czar Nicholas.  The DNA test proved the bodies in the graves were indeed the Romanov family, the last royals in Russia.

It is easy to give a DNA sample.  100 labs around the world provide the services.  Find an accredited one, order the kit and begin your search with genealogy DNA for ancestors the world over.

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Genealogy DNA Testing for Ancestry

With DNA testing for ancestry, the field of Genealogy has more tools than ever to discover your family tree.  Along with the genealogist research tools for digging deep into historical records and family history, you now have Genealogy DNA comparison to give solid evidence to your research.

A simple DNA test can start you on the road to discovering your ancestors from 10,000 years ago.  Men and women can both test their DNA to learn the origin of their maternal ancestry.  A specific kind of test called mtDNA or mitochondrial DNA, searches only the women along the line, no men.  Women and men both receive their mtDNA from their mother.

Men can learn the origin of their paternal line by testing their Y chromosome.  The Y chromosome test checks only the paternal line. Women do not have Y DNA and cannot be tested for their paternal line.  If they want to know their paternal ancestry they must ask a brother or their father or a male cousin to be tested.  This is one way to firm up the surname line of your ancestry.

Once the DNA sample is taken, the results will determine your haplogroup.  This is a set of a people with a common ancestor, often from 10,000 to 150,000 years ago, the time when it has been shown that humans evolved in Africa and then migrated around the world.  Men have both a paternal and maternal haplogroup; women have only the maternal haplogroup because they bear only X chromosomes while men have an X and a Y.

A fascinating result of the DNA test is to see where your ancient family members migrated across the globe.  You’ll see how mutations in early genetic lines affect your family too.   You’ll learn all the genetic influences in your ancient family tree.  You may have Asian influence you don’t know about or you may be related to Napolean or a U.S. President.   DNA testing for ancestry will provide knowledge about your unique family history you never thought possible.

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