Dear Customers
It is with regret that effective from 3rd July 2017 MyDNA.global will no longer be accepting new orders.
Whilst we have enjoyed offering this individual service it is unfortunately not something we are able to provide going forwards.
All existing orders will be honoured – if you have recently purchased a test and have yet to return your sample please do so by 31 August 2017 so we can process your results.
Unfortunately we cannot guarantee that samples received after 31 August 2017 will be processed.
For those customers who have already received their results these will be available to you via our website until 31 August 2018, after which they will no longer be available.
If you have any queries please email our support team: support@myDNA.global.
Thank you for your custom.

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Chromo2: The basics

What is Chromo2?

What is All my Ancestry?

What are autosomal markers?

What will I receive when I order the Raw YDNA test?

Will I also receive my raw YDNA data if I order the Chromo2 YDNA test?

What is the Chromo2 Red Head test?

 

Chromo2: In more detail

Important Information on viewing Chromo2 results online

What is Chromo2?

Chromo2 is our latest, state of the art gene chip used to test your DNA sample, which contains more than 15,000 Y chromosome markers, more than 3,000 mtDNA markers,  over 250,000 autosomal markers, as well as 33 redhead variants in the MC1R gene. These markers power the 4 components of Chromo2 CompleteYDNAmtDNAAll my Ancestry and Red Head. You can either order the complete package or pick and choose the test(s) that you want, with the option of adding other components at a later stage. Driven by the world-leading technology of Illumina, Chromo2 brings new dimensions to ancestry testing. It delivers more detail than any other chip for your Y chromosome, mtDNA or overall ancestry.

 

What is All my Ancestry?

Y and mtDNA tests tell you about just two of your many ancestral lineages. All my Ancestry is a test that looks at markers on your chromosomes 1 to 22 – also known as the autosomes - to learn about the origins of your many other ancestors. By comparing the variants you carry at more than 250,000 autosomal markers  to those of an extensive set of reference samples of known ancestry (including more than 4000 individuals from over 200 populations from all over the world) we perform three types of analyses: a Global Connections Plot will show you which populations you are closest to genetically, and detect recent mixture (such as an African or Native American ancestor in the past 4-5 generations). Your population percentage graph is the result of an Admixture analysis and will show you which proportion of your DNA originates from seven continental level groups: sub-Saharan African, European, West Asian, South & Central Asian, East Asian, Pacific Islander or Native American. You will also be able to compare your population percentages to those of our reference samples. Finally a chromosome painting analysis will allow you to see whether any blocks of DNA along your 22 autosomes are from different parts of the world.  Combined in the All my Ancestry test, these analyses allow you to discover whether you have any exotic ancestry. Do you have any Native American ancestry? African? East Asian? What proportion of Southern European and Northern European is your genome? Or are you a more complex mix and carry markers from a wide range of areas around the globe? Find out more about what you can expect from your All My Ancestry results here.

 

What are autosomal markers?

Humans have 22 pairs of autosomes, which are numbered from chromosome 1 to chromosome 22 and make up the majority of our DNA; as well as two sex chromosomes – XX for women and XY for men; and a small circular DNA molecule located in the mitochondrion, called mitochondrial DNA. In contrast to mitochondrial DNA, which is only passed on by mothers, and the Y chromosome, which is only passed on by fathers, autosomes are passed on to their children by both parents, in equal proportions. We thus inherit exactly 50% of our autosomal DNA from each parent, but not exactly 25% from each grandparent, due to recombination within our parents and the randomness of which copy of your DNA is passed on to the next generation. The further back you go, the smaller the percentage of autosomal DNA you will have inherited from each individual in that generation. Because of the chance involved in determining which copy of someone’s DNA is passed on to their child, the amount of DNA you inherit from each of your different ancestors can be very variable. Similar to YDNA and mtDNA markers, autosomal markers are thought to arise mainly from mistakes in copying DNA. And as for YDNA and mtDNA markers, they allow us to measure differences between individuals. Whilst two closely related people will share many autosomal markers, two individuals from different continents will tend to share fewer. Our All My Ancestry test looks at markers on your autosomes to show the percentage of your autosomal DNA that has been inherited from different parts of the world.