mtdna tests prove mothers?

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Help me understand this and explain to our group.

IF we have 3 proven brothers in same county/state and 30 kids.

AND some kids from these same take a mtdna test.
would that prove WHO had the same mother?

If Not

What test would help with this? marie, iowa

[paitenceofjob]

Help me understand this and explain to our group.

IF we have 3 proven brothers in same county/state and 30 kids.

AND some kids from these same take a mtdna test.
would that prove WHO had the same mother?

If Not

What test would help with this? marie, iowa

Everyone of the woman's kids will have her mtdna, so the mtdna test would confirm which kids were hers.

[genny]

Some kids could be children of her sister.

[bob_allison]

The mtDNA test is unable to prove maternity. This is because so many women share the same mtDNA, for example sisters and some cousins - even distant ones. Tests provided for the purpose of genetic genealogy are unsuitable for establishing exact relationships such as father/son or mother/son or daughter. However they can disprove a relationship if the DNA does not match.

[paitenceofjob]

Marie,

What's the circumstance here? I'm guessing we're talking of adoption here since the kids do not know their birth mother. Are there other indicators that they might share this woman as their birth mother?

If these kids do share this woman as their birth mother, their results on an HVR I and II test will show as exact matches. Perhaps, one of them might have had a single mutation.

People might argue that this is because they share the same grandmother, great grandmother, or distant great grandmother. But with the circsumtances as they are, and with the other information you have in hand, you'd have to decide whether ot not this was proof enough.

As an alternative to mitochondrial dna testing, you might want to google or yahoo the phrase "sibling test" and see what you can find.

[Jim Denning]

how can mtdna play a part?

so how can mtdna play a part? simple locations,locations locations

if you have a location which is heavely researched . just a ton of paperwork but some wives if mentioned had no maiden names.So you dont know maybe who this women is except for the name Mary
Now you have the females decended from Mary maybe thru 1910 .
Marys husband was a pratt. you have in your mailing list 7 people who decend from that couple 2 might be males decended from Samual Pratt's 6 sons but 5 are females who are decended thru the female lines off of Mary's 7 daughters.

these members are luke warm to all this since maiden names arent available. How can you be sure all the paperwork is true and people did what they said they did

so you get all 7 to test .the two males match making them decendents of Samuel. Now the 5 females test and match exactly proving that they are decendents of mary so all 7 are related .immediatly all their paperwork merges
and their trees spread wider more like an elm now then a fir.

but does it stop there you have done the genealogy of this tri town area and have many Pratts. Included in this paperwork are familes suspected but not proven to be near the pratts and some never thought to be Pratts

Do you stop testing with these 7 hell no

and people seeing the results fell maybe i can get some new people. As new people test those suspected to be close to the Pratts with no proof maybe they lived in prattville . they get their brother to test and his mtdna matches the 5 sisters decendents and his ydna is his surname Dearborn. Dearborn recruits his uncle to make sure they match they do but the uncle surprises everyone and matches the 5 women decended from mary. Uncle Dearborn has his tree past the Samuel Pratt and Mary. He looks at his time table to see who might be the conection. sure enough in the period his tree has Jacob Dearborn and Priscilla they had 8 kids 5 seemed to survive but only 3 were known to have paperwork past birth .one of the two undocumented was a Mary so this means using his paperwork we find a female decendent of Priscilla. we test her and sure enough she matches the five decendents of Mary ,Mary,Uncle dearborn, nephew Dearborn, this means somehow nephew dearborn's mom and uncle dearborns mom were related to priscilla Jacob's wife

now you merge all the trees involved and the research on the community has guidance on what to expect to find.

I dont know how many of you have done towns genealogys I have and this is more then possible even probable

Now i just started The Frosinone Project.Many people migrated to parts of the world. Now 50+ years later the children want to know am i related to all mazzolas from san danato as i am a mazzola from there . They pilgramage to there yearly.one problem its 8 miles from monte casino In the battle with the germans there was mass bombings all buildings were leveled . all records destroyed. all grave yards destroyed. only 50 -100 years and no answers

wanna bet ydna makes the families but mtdna connects them.whats needed a large database with decendents families .Most know the ggrandparents from american death certs and grave yards.as you accumalate the surname lines and the mtdna lines the process above will pay off at least to connect the mazzolas of the world to san danato

maybe it isnt easy but who said it would be
genealogy never is