DNA Questions: You Ask, We Answer

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Family History Fanatics

Family History Fanatics

Күн бұрын

Пікірлер: 39
@suzannemcclendon
@suzannemcclendon 2 жыл бұрын
Thank you for answering my question regarding cMs vs SNPs AND teaching me something that hadn't been explained to me before. Since my DNA journey began, I have been told a minimum of 7cM and a minimum of 700 SNPs. No one has ever said anything to me about it needing to be at least 100 SNPs per cM, so I've been tooling along thinking everything was okay so long as there was at least 700 SNPs on any match over 7cM. Thank you! You have helped me a great deal with your response! Have a blessed night. PS What is the cost of the DNA workshop that you mentioned?
@FamilyHistoryFanatics
@FamilyHistoryFanatics 2 жыл бұрын
Unfortunately, there is so much confusing in DNA research strategies despite a perceived nothing to have standards. While some researchers might have success doing research contrary to what I share, having worked with numerous folks trying to build their tree with DNA. The thresholds that I share produce the greatest chance of success. The cost of the workshop is usually around $49-69.
@suzannemcclendon
@suzannemcclendon 2 жыл бұрын
@@FamilyHistoryFanatics I am very grateful to have this information. I know now to put those with less than 100 SNPs per cM on the backburner for now and to focus on those with at least 100 SNPs per cM. Maybe I will make progress rather than getting bogged down with segments that aren't going to answer my questions. Speaking of questions, I found another clue to my mystery 3rd great-grands this afternoon in an old genealogy notebook from back when my grandparents were still alive. That notebook has been hiding in a box in the garage for the last 18 years. It is a clue, but also brings more questions, as usual. :) Have a blessed day.
@johnross8939
@johnross8939 2 жыл бұрын
To answer Robert Bell, STR matching ie, Y37, Y67, or Y111 is only predictive of potential matches, not proof of it. The only way to tell whether you and a Y37 to Y111 match descend from a common male ancestor, your Y lineage, is for both men to take a Y-DNA discovery test. Big Y700 is just one of such possibilities. If both males test with Big Y700 then FTDNA will display their matching Y-DNA SNPs on its Big Y Block Tree. That's if you and the other male descend from a common male ancestor. Telling who the common male ancestor is becomes a different story.
@FamilyHistoryFanatics
@FamilyHistoryFanatics 2 жыл бұрын
Thanks for sharing your thoughts. Robert will love it.
@BarbB_in_TN
@BarbB_in_TN 2 жыл бұрын
Yes I like these rapid fire videos
@FamilyHistoryFanatics
@FamilyHistoryFanatics 2 жыл бұрын
Awesome. I can do these more often. They are taxing, so we need to mix them up a bit. However, I'm glad to receive feedback.
@bekgilbert6562
@bekgilbert6562 2 жыл бұрын
I'm one of the rarest ones for mtDNA. I have done the full sequence mtDNA on FTDNA and I'm haplogroup V. No subclades here 😁 but my dads is R-Z12 and I can't seem to find the expanded subclade version of it.
@S.L.S-407
@S.L.S-407 2 жыл бұрын
My fathers father( grandpa) was one of 7 kids. 5 of the 7 had grandchildren etc who tested on Ancestry. My grandpa's brother's granddaughter tested and she had 458cM's to me. My fathers great granddaughter tested and had 457cM's to me. My fathers sister's great grandson tested and had 423cM's to me. My father's brother had a grandson who tested and had 732cM's to me. I'm adopted so I have no idea about who any of these people are, but these cM's seem very high and perhaps don't make sense. Are these cM numbers possible ? Thank you for any help.
@lottaboty
@lottaboty 2 жыл бұрын
I have found a lot of information on my mother's father's line, but very little on my grandmother's. My grandmother died very young being the only child of her mother who died shortly after giving birth. I am a person of color, but my DNA has about 17 percent combined Irish, Scotland, German and England. My Grandmother's Grandfather was listed as mulatto on early census and later as black. I also find Families that seem like duplicates living in different states during the same census year. The people who may have knowledge of my Ancestors have to acknowledge and accept the past before a lot of us can know our ancestry. I need answers for my Children and Grandchildren.
@FamilyHistoryFanatics
@FamilyHistoryFanatics 2 жыл бұрын
I wish more people could understand what you are saying. Genealogy is really the history of the whole human race and our families intertwine in ways we don't realize. Keep up the research, with an only child the DNA pool gets small real fast.
@saraschneider6781
@saraschneider6781 2 жыл бұрын
I tested my grandmother and she has 30% Swedish and Danish on one side we have no idea where it originated and, unfortunately, her parent 1 & 2 are otherwise so identical that I can't figure out even which is which. Her closest match3s are quite 1st cousin 1x removed on each side. How can I use her matches to learn more about this 30%
@hashbrownsendittotheintern2738
@hashbrownsendittotheintern2738 2 жыл бұрын
@momplusfive Hint: You can actually reassign your dna to someone else in your tree in order to find more matches that prove past the Fifth great grandparents. So for example you can assign your dna to your great grandfather in your tree instead of yourself to search for more matches that prove 6th great on up for that particular line. Very handy with the thrulines tool.
@hashbrownsendittotheintern2738
@hashbrownsendittotheintern2738 2 жыл бұрын
However I would wait until you switch it back to yourself before you assign a matches position in the DNA match list view because it will be off otherwise since it will still be assuming that dna is coming from great grandfather position.
@FamilyHistoryFanatics
@FamilyHistoryFanatics 2 жыл бұрын
Actually, that's a research technique that's greatly frowned upon by most genealogy educators. It can actually lead to false matches and more confusion. Assign your DNA to yourself in your family tree.
@hashbrownsendittotheintern2738
@hashbrownsendittotheintern2738 2 жыл бұрын
@@FamilyHistoryFanatics your DNA is your DNA. You are not changing your DNA somehow in any way whatsoever. You wouldn’t be causing a mutation or something weird. Ancestry claims that if someone shows up as a match then that’s exactly what they are. You are sharing DNA with that person. The only thing that it would affect is your ability to see more potential direct ancestors while using the thrulines tool. The thrulines tool is just a tool as well. Just because potential ancestors show up while using it doesn’t mean that those people are definitely your ancestors. You have to compare documents and research everything when confirming your tree. People make mistakes. Technology makes mistakes. If you however, do connect your DNA to a great grandfather and therefore see an 8th great grandfather in thrulines with 30 matches coming off of him then I would hardly think that this was a false match. You would still see these matches in your extremely long list of DNA matches just by clicking on common DNA ancestors. This just allows you to see them in thrulines that’s all.
@fightdoctor1954
@fightdoctor1954 2 жыл бұрын
Q - Small segment question. Would you regard multiple siblings DNA matching (6 or 7cM) to a distant maternal (or even paternal) cousin (more times than not) as being a valid (not false) segment? Thanks.
@FamilyHistoryFanatics
@FamilyHistoryFanatics 2 жыл бұрын
Not necessarily.
@fcgn1908
@fcgn1908 2 жыл бұрын
Question: How can you tell where your match tested on MyHeritage DNA match? I'm having trouble with false matches caused by comparing kits from different companies. Most recent was my Ancestry kit vs. mom/dad FTDna vs whatever my match did causing a very large segment match to me that didn't match either parent.,
@FamilyHistoryFanatics
@FamilyHistoryFanatics 2 жыл бұрын
You can't. MyHeritage doesn't tell you whether it is a import kit or not.
@fluffykitten2084
@fluffykitten2084 2 жыл бұрын
Who is the R??? How can I get someone to hear my information and look into my DNA please.....
@FamilyHistoryFanatics
@FamilyHistoryFanatics 2 жыл бұрын
There are many people with the R haplogroup. In this community, they focus on building their family tree using DNA cousin matching kzbin.info/aero/PLcVx-GSCjcdmsw25mbI-wJin_9_9QQUzI If you want someone to review your DNA and advise you, then you would likely need to pay a genetic genealogist.
@yahccs1
@yahccs1 Жыл бұрын
From your video explaining there's a range of DNA match percentages for given relationships and a variety of relationships that could give a certain % of matched DNA It makes me wonder what is the most distant relationship you can share a certain % of DNA with say 2%, 1% or 0.5% (the lowest detectable non-zero %) and what is the closest relationship you can have 0% shared DNA with? (The variation might lead to false match identification or false 'non-matches!') I'm just curious really. I'm not using DNA for my own family research - just record listings! The science and mathematics of it all is intriguing. I suppose I also just like to see happy ending stories where the science of DNA (as well as some very clever detective work) has made a difference to families who discover long lost relatives and people are reunited with parents and siblings etc.
@yahccs1
@yahccs1 Жыл бұрын
Well I'm glad you showed that relationship chart it almost answers my question.
@FamilyHistoryFanatics
@FamilyHistoryFanatics Жыл бұрын
When you reach your 3rd great-grandparents and their descendants, you begin sharing less and less DNA with your cousins from this ancestor. You'll share even less DNA with descendants of your 4th great-grandparents. Thus, it's best to test as many siblings and cousins of the same common ancestors as possible because some of your relatives will share DNA with genealogical relatives that you do not.
@yahccs1
@yahccs1 Жыл бұрын
@@FamilyHistoryFanatics Yes it makes sense, thanks
@yahccs1
@yahccs1 4 ай бұрын
Well I'm also glad I binge-watched your videos while waiting for my DNA results to come, then I had some ideas of what to do to analyse my match data! I wonder why this one came back onto my playlist on KZbin after so long?! It certainly gets harder to estimate a relationship with a match as the shared cM goes down. Also the Ancestry ThruLines might think some matches are a lot closer than they are if the shared cM is unusually high for the relationship. Like estimating people to be like 4th-5th cousins when they are 8th or 9th cousins or further... unless I also relate to them in another way on another line! I've been enjoying looking for records to prove or disprove those ThruLine matches, and the possible common ancestors. Just the other day one line that had a ThruLine common ancestors 4th great grandparents (5th cousin level) via an impossible sibling of my 3rd great grandparent... (same first name as another 'known' sibling) I traced their line back and found the nearest possible common ancestors on that line was potential 8th great grandparents which would make the match a 9th cousin. It's possible to share some DNA but also possible I relate in another way, or it is a false match that happens to have the same surname in their tree, possibly related further back than those potential common 8th great grandparents. ThruLines doesn't go back that far, but it challenges us to trace further back and discover more possible ancestors along the way.
@eldoen
@eldoen 2 жыл бұрын
Afternoon
@FamilyHistoryFanatics
@FamilyHistoryFanatics 2 жыл бұрын
Howdy
@janetc2238
@janetc2238 2 жыл бұрын
Janet from Oklahoma
@FamilyHistoryFanatics
@FamilyHistoryFanatics 2 жыл бұрын
Thanks for watching the replay.
@brandonnelson9951
@brandonnelson9951 Жыл бұрын
l have a questlon, l know lts a llttle late but maybe youll see lt. lf l have a small segment of a chromosome, that ls ldentlcal. That means that l got the same from mom ad from dad. So lf they have at least thls segment that ls the same, whlch they have to or l wouldnt have both. Does that mean that my mom and dad are dlstant couslns?
@brandonnelson9951
@brandonnelson9951 Жыл бұрын
new subscrlder btw love the vldeos
@anna-karins1176
@anna-karins1176 2 жыл бұрын
Thank you for a very helpful video. I have spend hundreds of hours on ancestors of smaller DNAmathes onmy paternal grandmothers side. I have send Devon email with my email adress since I would like to read her book about her Geissler ancestor ;)
@FamilyHistoryFanatics
@FamilyHistoryFanatics 2 жыл бұрын
I got the email while at the swim meet. I'll answer it asap.
@anna-karins1176
@anna-karins1176 2 жыл бұрын
good luck with the swim meet. I missed my watergymnastics today since something was wrong with the swimmingpool.But I managed to get a ride into the wood at the outskirts of Växjö instead ;)
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