Welcome to Visual DNA
Visual DNA is a page with a collection of different applications and links to information and data about DNA in its various forms; autosomal DNA, Y-DNA, X-DNA and mtDNA. The applications developed for Visual DNA strive to provide full capacity for modern browsers in combination with various components that provide a powerful opportunity to visualize data sets in many different ways.
Note: This site uses Google Translate, refer to selectable flags in the upper right corner of the screen.
For any inquires about Visual DNA contact: Jari Kinnunen at firstname.lastname@example.org.
Ancient DNA is DNA isolated from ancient specimens. Genetic material can be recovered from paleo/archaeological and historical skeletal material, mummified tissues, archival collections of non-frozen medical specimens, preserved plant remains, ice and from permafrost cores, marine and lake sediments and excavation dirt.
Visual DNA provides for an Ancient DNA Map based on a public dataset with Y-DNA and mtDNA samples that range from the oldest about +48.000 years ago close to the youngest within a century from current date.
Read more about Ancient DNA on Visual DNA >>
Contemporary DNA – Your DNA
DNA research is today available to almost everyone at affordable prices. A DNA kit can today be easily ordered on the internet and the test can be performed by yourself at home and then sent to a laboratory for analysis and comparison with other tests. You can review the results via the internet but also in some cases send your results in a file for refined analysis to other companies.
In autosomal DNA one set of chromosomes 1-22 comes from the mother, while the other set comes from the father. These two sets are recombined in an unbiased, random, and uncontrollable fashion. Autosomal DNA testing is the most common commercial DNA test and it can constrain a relationship within a limited number of generations in the past, typically 5-6 generations, refer to attached graphics and simulated model by HAPI-DNA Tools. Outisde that constraint an autosomal DNA relationship is still possible but normally not traceable in the same sense.
Autosomal DNA Crossfilter
Anyone who has tested Family Finder on FTDNA can use the Autosomal DNA Crossfilter configured by Visual DNA for further analysis. FTDNA’s Chromosome Browser is limited to review only seven (7) out of possibly +10.000 Family Finder matches simultaneously. With Autosomal DNA Crossfilter it is easy to browse through and cross filter chromosomes 1-22 and X in the search for matches, long blocks or specific recombination points. The Autosomal DNA Crossfilter is free of use.
In genealogy, the male lineage is traced unambiguously using the Y chromosome because it is only passed down from the father to son. The male-specific portion of the Y-chromosome (MSY) contain an accumulation of mutations throughout time. All individuals carrying a Y chromosome are related through a single XY ancestor who (likely) lived around 300,000 years ago.
There are mainly two principal types of tests, haplogroup test based on single-nucleotide polymorphisms (SNPs) and haplotype test based on short tandem repeats (STRs).
Read more about Y-DNA on Visual DNA >>
Females inherit an X chromosome from their father, and the other X chromosome from their mother. Biologically male people always inherit their X chromosome from their mother.
X-DNA is usually tested in combination with autosomal tests.
Mitochondrial DNA is passed down almost unchanged from a mother to her children, allowing females and males to trace their maternal ancestry however males do not normally pass mtDNA on to their children.
With mtDNA it is possible to define a specific mtDNA haplogroup that places you in a phylogenetic tree, refer to: Phylogenetic Trees >>