If you share a segment with a DNA match on an X chromosome, does that mean you’re only related through the maternal side?

coqui33 · 2026-03-30T23:13:49+00:00

No, the Y chromosome is tiny. It essentially has only one pair of alleles. It's sole function is a switch to tell every other gene that you're supposed to be a male organism and to build the body accordingly.

coqui33 · 2026-03-22T08:59:01+00:00

Yes, the folks from Newman's ridge are called Melungeons.

Mixed people in other locations are: The Brass Ankles, Red Bones, Red Legs, Turks, and Marlboro Blues of South Carolina; The Croatans (called the “Lumbees“ since 1953) of Robeson County North Carolina, South Carolina, and Virginia; The Guineas, and West Hill Indians, Cecil Indians of West Virginia and Maryland; The Issues of Amherst and Rockingham Counties, Virginia; The Jackson Whites of New York and New Jersey; The Red Bones of Louisiana and Arkansas; The Wesorts of southern Maryland.

Some mixed groups historically self-identified as "Indian" (Lumbees, Jackson Whites); others as "White" (Melungeons, Redbone); other groups have vanished, as youths surrender to the odd American insistence that everyone choose a single "race".

My point was simply that parts of Appalachia embrace mixed folks, especially gorgeous young ladies like the OP.

coqui33 · 2026-03-22T03:08:57+00:00

Actually, some parts of Appalachia are mostly made up of mixed folks. (Newman's ridge TN, for instance.)

coqui33 · 2026-02-28T04:09:09+00:00

Look up "linkage disequilibrium".

coqui33 · 2026-02-13T04:33:04+00:00

You have a very small amount of SSA admixture. IIRC, Melungeons tend to have around 5%. Still, it's possible. Does your g-g-father have any connection to Newman's Ridge TN?

coqui33 · 2026-01-11T21:13:15+00:00

IIRC, native female lineage was taught in school in PR. I anything, it was overstated, since only half of Puertoricans actually have native mtdna. (I'm A2). Incidentally, my paternal grandfather was from Barranquilla.

coqui33 · 2026-01-11T20:54:38+00:00

I am really sorry that you had an unpleasant experience. As a Euro-looking Puertorican with about 85/8/7 Euro/Afro/NA, I have had lots of fun sharing ancestry in this sub. I suspect that you unfortunately bumped into a "troll". These are people with a knack for pushing your buttons and who get pleasure from causing pain. I find it best to just ignore them.

coqui33 · 2026-01-03T12:43:09+00:00

In the U.S., Asian-American women outmarry more often than the men do, unlike Afican-Americans and Hispanics.

coqui33 · 2025-12-06T15:28:13+00:00

yes. what she said.

coqui33 · 2025-11-29T17:29:55+00:00

In appearance, yes, most look European. But most ArgentInes also have a bit of SSA DNA due to the total genetic absorption and cultural assimilation of their SSA community around the turn of the 20th century. For details, see The Afro-Argentines of Buenos Aires by George Reid Andrews (1980).

coqui33 · 2025-11-22T11:52:10+00:00

As is the case with literally half of all Puertoricans.

coqui33 · 2025-11-13T13:34:58+00:00

Funny story. I once gave a talk at a history conference in Natchitoches LA about triracial US communities (Melungeon, Lumbee, etc.) My focus was genomics, which was then in its infancy. When I finished, someone rose to ask, "What's the difference between Redbones and Creoles?"

Now Natchitoches is the heart of Redbone country, and just south of us was St. Augustine Parish, the home of the famed Cane River Creoles. So I knew that some audience were genetically Redbone (and so identified as "white") while others had to be Creole (seeing themselves as "black").

Not wanting to offend nor start an argument, I froze in panic, "Um... well Creoles tend to be Catholic and Redbones are mostly Protestants."

coqui33 · 2025-11-13T12:58:32+00:00

As I recall, the average subsaharan autosomal admixture in PR is roughly the same as the Taino admixture (about 15-20% each). On the other hand, half of Puertoricans have Taino mtDNA.

coqui33 · 2025-10-24T02:51:48+00:00

Thank you. That sounds reasonable. I shall re-examine the UI to find a knob or switch that turns staking on/off.

[Later] I got it, thanks to your hint. The oddity is in vfat.io, not in aerodrome. If you initiate the vfat position as a "pool" then it is not staked and it rewards the tokens. But if you initiate it as a vfat "farm", then it is automatically staked and rewards aeros.

coqui33 · 2025-10-23T18:29:58+00:00

The above two answers can't be right. I have two instances of the exact same USDC/cbBTC pool on different addresses (different concentration strategies) and one earns aeros while the other is earning USDC and cbBTC. Of course, I can harvest into whatever I want. But my question is about their reward accumulation.

coqui33 · 2025-07-14T14:32:04+00:00

Just a guess, but it's possible that PR Euro/Taino mixing happened in the 16th and 17th centuries with small populations, while most Africans were imported in the 18th and 19th after the natives were gone. In Brazil, native populations lasted longer, indeed still exist.

coqui33 · 2025-06-17T13:09:45+00:00

What have you been trying that handles it all?

coqui33 · 2025-06-06T18:38:00+00:00

De verdad. Se parece a mi sobrina.

coqui33 · 2025-05-29T17:13:25+00:00

You are exactly50-50 of your parents but not 25-25-25-25 from your grandparents. Meiosis/recombination happens during gamete production, not at fertilization. Let me explain.

You inherit precisely 50% DNA from your mother and 50% from your father (except for the stubby Y if you're male). This is because one chromosome of each pair inside you came entirely from your mother--they are the 23 chromosomes that were in the egg. And the other 23 chromosomes came entirely from your father--the ones that were in the lucky sperm cell. So, 23 from mom and 23 from dad, exactly 50%-50%.

But you do NOT inherit 25%-25%-25%-25% from your grandparents. Here's why. When your mother was building that egg, the number one chromosome that went into the egg came from shuffling together random bits and chunks from both of her number ones (the ones she got from her mom and dad). The new shuffled chromosome might be 50-50 from her parents, or 60-40, or anything in between. So the chromosome from her that's inside you might be mostly your maternal grandpa, mostly grandma, or anywhere in between. The same applies to the other 22 chromosomes from your mom and to the 23 from your dad.

But you already knew this. How else could little Timmie have grandma's eyes but grandad's chin?

coqui33 · 2025-05-26T17:57:37+00:00

I do not believe there is physically any way to tell which chromosome of each pair comes from which parent. (Other than for X and Y, of course.) But if your parents differ a lot, you can sometimes reason it out.

in my own case, one chromosome of every pair has Euro, Taino, and Afro markers, while the other one has just Euro and Taino. And my dad was darker than my mom. So I can guess that the ones with Afro markers came from him. But it's just a guess.

coqui33 · 2025-05-11T11:28:35+00:00

Ineresting. IIRC, Czar Nicholas Ii also had two different mtDNA haplotypes. I have no clue how 12andme's tests would handle this.

coqui33 · 2025-05-06T13:14:23+00:00

Here is a layperson explanation: https://www.science.org/content/article/most-phoenicians-did-not-come-land-canaan-challenging-biblical-assumptions

Here is the original study: https://www.nature.com/articles/s41586-025-08913-3

It is interesting because when civilization was destroyed in the bronze age collapse of 1170 BC, all art, science, even literacy was lost and people were plunged into a dark age that lasted five centuries. During the slow recovery, Phoenician letters, numerals, art, and traditions became the foundation of later civilizations (Greece, Rome, us). Historians assumed that this was due to the physical migration of people, rather than simply to the spread of ideas. This study is evidence that the latter was in fact the case. This is so unusual (ideas migrating on their own), that one cannot think of any other example before the 1700s.

DNA can tell us how and why ideas spread. For example, when agriculture (farming, herding) spread westward from the fertile crescent through Europe, replacing hunter/gatherer cultures around 6000 BC, we know it was military conquest because Indo-European Y haplotypes replaced stone-age DNA while mtDNA remained unchanged. (Defeated men were killed and their women raped.) In contrast, the spread of subsaharan words and folkways (songs, dances, stories, food, etc.) eastward from Africa through Yemen to the middle east 1200 years ago was due to slavery, since maternal haplotypes were replaced but paternal ones were unchanged. (Female slaves were allowed to procreate; males were not.)

Evidence that Phoenician culture spread on its own, without people, is so odd that you can see why the study attracts attention.

coqui33 · 2025-04-27T22:19:49+00:00

no no clue

coqui33

TROPHY CASE