How to knock down family history ‘brick walls’ using DNA

DNA in family history
DNA image by Nogas1974 (Own work) [CC BY-SA 4.0 (http://creativecommons.org/licenses/by-sa/4.0)], via Wikimedia Commons

 

Are you confused by what DNA testing can offer the family history researcher? I know that I have been!

Do you wonder how DNA test results can help you to break down your brick walls in your ancestor research? Or perhaps you are not sure what or who to believe?

 

I read an excellent article this week that I really think is worth drawing attention to. If you don’t already belong to Peter Calver’s LostCousins then you may not have seen this week’s LostCousins Newsletter

 

LostCousins

The article explains why we can’t afford to ignore DNA evidence in doing our research; what test you should consider taking; who should do the test and an independent opinion on which company to test with.

You will also learn what the DNA test can’t tell you; what you will find using DNA and how it could help you break down your brick walls.

I can’t recommend this piece more highly as it well written and easy to understand. This is not the first article that Peter Calver has written on this subject, so if you want some answers to the questions that many of us have about DNA and how it can be used in family history research then why not join his LostCousins membership? Standard membership (which includes the newsletter), is FREE.

If you join the LostCousins website and share your ancestors it can help you to find living relatives and so help you to discover more about your family tree. LostCousins say on their website that it ‘is all about bringing people together, not just people who share an interest in family history, but people with a shared interest in the same families, people who share the same DNA.’

If you want to find more cousins and get Peter Calver’s interesting newsletters read more at: https://www.lostcousins.com/

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DNA Testing becomes accessible as TheGenealogist slashes prices!

 

TheGenealogist DNADNA Testing is now accessible to everyone as TheGenealogist offers DNA tests from under £50 and slashes prices by up to £150 on other tests!

Due to the increase in popularity of DNA testing and advances in technology, TheGenealogist is now able to offer DNA testing for genealogical research at significantly reduced prices. It’s never been more affordable to add your DNA to the world’s largest genealogical DNA database and start finding matches. You can see the prices and compare the various tests at www.thegenealogist.co.uk/dna

As family historians, DNA testing can really assist our family history research and help us break down those brick walls. Many researchers find the maternal line difficult to trace using traditional methods such as census and parish records. However, an mtDNA test could prove invaluable to your research and help you discover missing ancestors or add a new line to your research. The test can be taken by both males and females and helps you trace that maternal line.

It’s straightforward and can all be done online with the minimum of effort. A kit is sent out to you and you simply post it back to get added to the DNA database and discover your results!

Mark Bayley from TheGenealogist comments: ”With prices from under £50, DNA testing is now finally affordable to the vast majority of family historians. DNA matches are provided against the largest database in the world.”

The Range of DNA Tests on offer

TheGenealogist offers 3 types of testing- the ‘Mitochondrial’ mtDNA (maternal line) testing, the’ Y-Chromosome’ Y-DNA test (for paternal lines) and the Family Finder test, which tests both male and female lines and also tells you your ethnic percentages. With prices starting from under £50, it’s become more affordable than ever.

It’s amazing to discover how far DNA testing can help us trace our ancestry. A skeleton of a twenty three year old hunter who died 9,000 years ago was discovered in a cave in Cheddar, Somerset and Mitochondrial DNA testing was able to identify a local school teacher as a direct descendant. The same principles are being applied to the discovery of at least twenty eight early human skeletons found recently in the mountains of Northern Spain, the ‘Sima de los Huesos’ tribe, who are undergoing Mitochondrial DNA tests. This DNA is passed down through the maternal line and is easier to recover from ancient bones.

More information and the new price offers are available from www.thegenealogist.co.uk/dna

 

The Genealogist – UK census, BMDs and more online

Disclosure: Compensated affiliate links are used above.

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Famil Tree DNA Tests

 

FDA_microbiologist_prepares_DNA_samples_for_gel_electrophoresis_analysisNot so long ago we just never heard of DNA being used in everyday situations. And then suddenly every detective story on TV seemed to mention the suspect’s DNA being collected from the crime scene.

In the world of family history, DNA has also emerged into the main stream. Today if you want to prove that you are descended from a certain line then you may be able to use genetics to prove it.

But then there is the shorthand that is used that can confuse us a little. You may have heard people talking about “snips” or SNPs and STRs and wondered what this has to do with anything!

I will now attempt to explain what I myself was uncertain of until I attended one of the talks by an academic at last year’s Who Do You Think You Are? Live show and then found it explained again in chapter 12 of Anthony Adolph’s book Tracing Your Aristocratic Ancestors. Pen and Sword 2013

Chromosomes are made up of special proteins and DNA. DNA is composed of numerous base-pairs of nucleotides all arranged in a double-helix shape.

In every human cell there is a nucleus that contains twenty-two pairs of chromosomes that bear autosomal DNA and one pair that decides on the gender of the human. The two sets of chromosomes are reduced down to one in a process of myosis that produces eggs in females and sperm in males.

When a man and a woman have a child the male passes on the one set of his chromosomes and mixes with the female’s one set and so the next generation inherits from its parents.

It is a complex process that causes some slight changes or mutations which are known as genetic polymorphisms. Some of these mutations include single nucleotide polymorphisms which are often abbreviated to the letters SNPs.

A single tandem repeat is known as a STR.

SNPs and STRs do not, it is believed by the scientists who understand such things, carry any useful codes needed in the creation of ourselves, but they are there.

 

Individual genes have two or more possible states of being and these are usually referred to by the letters A or T and C or G.

An SNP is a change detected in a gene’s state of being from, say, A to G and you may see it being called a “unique event polymorphism”. Once a SNP has occurred it will now stay the same as it is passed down the generations and so you can see how this can act as a reliable marker for “deep ancestry” haplogroup testing.

 

So what about STRs?

 

They are a bit different. STRs occur in a different part of the chromosome and they are a series of multiple changes caused by the addition or subtraction of the number of base-pairs. So by counting these base-pairs the DNA company get to a numerical code. The great thing about these mutations is that they occur over a shorter time than the SNPs do and so they can change over shorter spans of generations.

 

Y-STRs are taken specifically from the male Y chromosome and are only passed down by the father, making the Y chromosome in any paternal line practically identical.

What we are presented with is two complementary sets of results: SNPs define a person’s haplogroup, or the group of people that share the same markers that can go back many thousand of years. The second is the smaller group of people that share the same STRs who are related to each other over the last couple of thousand years or less.

 

The second exception is mitochondrial DNA (mt-DNA). This is only passed down from a mother to her child, but which only her daughters will pass on. This means that we have a definite marker for the female-line, in other words the mother’s mother’s mother’s (and so on) family.

As we get closer to Christmas I have noticed that www.familytreedna.com are offering money off their packages for the holiday season. Do you know anyone who would like to have a present of a DNA test as it would seem to be a good time to buy?

Disclosure: Links are compensated affiliate links.

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