Here’s an example of precisely what the FTDNA chromosome browser looks like when you compare the fresh signed-inside the package to help you one or two other kits:

Here’s an example of precisely what the FTDNA chromosome browser looks like when you compare the fresh signed-inside the package to help you one or two other kits:

FTDNA’s chromosome web browser

A total of four kits can be looked at at the same time regarding chromosome browser. These can getting selected by ticking boxes in one of the poor designed selectors possible. In preserving this new privacy out of my FTDNA-overall-fits and to stop shaming the latest developer, I really don’t let you know they here. It is on seven.5 traces high, but shows your FTDNA-overall-matches ten at the same time, ordered because of the surname, requiring a vertical scrollbar. It runs collectively left regarding chromosomes 8 so you’re able to 18, with a lot of empty light room left regarding chromosomes 19 in order to X. Instead of exhibiting the usual colour-coded place-holders in which zero mugshots appear, they shows grey mugshots both for women and men. My very first FTDNA-overall-suits because of the surname is actually identified only from the his or her initials “N A”. I need to visit other case and appearance to possess his otherwise her the color-coded mugshot to decide if this might be a male otherwise an effective ladies, that is extremely extreme when considering new X-chromosome.

If Terry part-matched myself almost everywhere you to definitely she area-suits their mother which the woman mother region-matches me, i

Someone I understand by way of family history sent myself the latest screenshot above (drawn ahead of FTDNA extra the brand new X chromosome), produced whenever you are logged into the lady mom’s FTDNA package. Let us call the girl Terry. You will find plenty more comparable examples with the ISOGG Wiki.

Terry’s mom and i are also FTDNA-overall-matches. Since the discussed into FTDNA myspace webpage, we part-suits with the 14 regions of 1cM or maybe more. Our very own number of mutual markets, longest take off mutual (8.93) and overall common cM () combine to carry us when you look at the over the wonders tolerance having FTDNA-overall-suits.

Terry and that i aren’t FTDNA-overall-matches. To own explanations that i will come to help you later on, we can not get in brand new FTDNA data just how much, or and therefore places, Terry enjoys inherited away from their mommy of one’s autosomal DNA you to this lady mommy and i also display, however, i however anticipate that it is approximately half. What truly matters for the moment is that Terry and i come into beneath the threshold getting FTDNA-overall-suits.

The brand new bluish places on image above is the 14 places away from 1cM or even more about what Terry’s mommy and i region-match; the first default visualize exhibited only the step 1 segment of 5cM or more on what i region-match, but there is good dropdown eating plan that can be used to slow down the tolerance and you can screen small countries.

Getting my first couple of weeks looking at these pretty photos in the chromosome web browser, I generated the new incorrect expectation one to region-fits try good transitive family relations, however, this situation shows that they obviously actually. elizabeth. in every the bluish markets on the chromosome browser, then Terry will have to FTDNA-overall-suits myself, and therefore she will not.

The next hint that we got misinterpreted things is actually that you to definitely Terry’s DNA along with her mother’s DNA apparently matches inside 100% of urban centers, however, we expect you’ll find Terry handed down simply fifty% away from the woman DNA off the woman mommy (you to chromosome within the for each couple), additionally the almost every other 50% (additional chromosome for the for every few) regarding the lady dad. The new parent-guy analogy on the ISOGG wiki seems likewise once the Terry’s example, thus i realized there had to be a rational reasons.

We turned to Google trying to find so it need, and eventually receive a mention of the 1 / 2 of-similar regions. Believing that I would personally get on the right track, We googled one to phrase, which produced me to Session nine of your Beginners Self-help guide to Genetic Genealogy and family history into Wheaton Surname Resources site, of which stage a white-light bulb in the end ran from in my own head! I’m hoping I’ve explained the thought of 1 / 2 of-identical part certainly a lot more than

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