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Daniel Tabin

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Anya Rossi

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New ancient DNA paper from Ladakh finds excess Andient North Eurasian ancestry shows that Steppe ancestry was already in India before 2800 years ago #ancient #dna #history #ladakh #indoeuropean

New ancient DNA paper from Ladakh finds excess Andient North Eurasian ancestry shows that Steppe ancestry was already in India before 2800 years ago #ancient #dna #history #ladakh #indoeuropean

18,871 просмотров • 11 дней назад

Are Neanderthals closer to West Africans than Europeans? Were the ANE a mix of European and Native American ancestry? No and no, but why do some PCAs show things like this? Find out in part 7 in my popgen video series. I'm covering Drift, PCs, projection G25 and more!

Are Neanderthals closer to West Africans than Europeans? Were the ANE a mix of European and Native American ancestry? No and no, but why do some PCAs show things like this? Find out in part 7 in my popgen video series. I'm covering Drift, PCs, projection G25 and more!

33,142 просмотров • 4 месяцев назад

Wanted to follow up on this post and explain why archaic centromeres being found in modern people is so amazing. Also am I crazy or does one of the haplotypes look potentially super archaic in origin 👀

Wanted to follow up on this post and explain why archaic centromeres being found in modern people is so amazing. Also am I crazy or does one of the haplotypes look potentially super archaic in origin 👀

14,264 просмотров • 1 месяц назад

What do F-statistics represent? What does it mean that f3(San, Yoruba; Xhosa) = -0.01? Beyond simply indicating admixture, what does that value represent, and how does it related to underling true admixture graph? Find out in my 11th aDNA and popgen video!

What do F-statistics represent? What does it mean that f3(San, Yoruba; Xhosa) = -0.01? Beyond simply indicating admixture, what does that value represent, and how does it related to underling true admixture graph? Find out in my 11th aDNA and popgen video!

21,155 просмотров • 3 месяцев назад

Admixed populations generate negative f3s, but why? Why are f2s always positive? And what is the math behind f2s, f3s, and f4s? All these questions and more are answered in the 10th video in my ancient DNA and population genetics series.

Admixed populations generate negative f3s, but why? Why are f2s always positive? And what is the math behind f2s, f3s, and f4s? All these questions and more are answered in the 10th video in my ancient DNA and population genetics series.

19,510 просмотров • 3 месяцев назад

What is #FST??? #DNA #science

What is #FST??? #DNA #science

22,061 просмотров • 4 месяцев назад

FST tells us that at most 15% of the information about someone's genome is explained by population structure, so how do PCA's distinguish populations with FST << 0.15? What is the relationship between FST and "variance explained" in PCA? Both answer and more in popgen video #8

FST tells us that at most 15% of the information about someone's genome is explained by population structure, so how do PCA's distinguish populations with FST << 0.15? What is the relationship between FST and "variance explained" in PCA? Both answer and more in popgen video #8

18,584 просмотров • 4 месяцев назад

How does one tell if some population A is closer to population B or C? The f4-statistic has you covered! In the 9th part of my popgen and aDNA methods series, we cover the basic intuition behind an f4-statistic and how it can be used to learn about relatedness and history.

How does one tell if some population A is closer to population B or C? The f4-statistic has you covered! In the 9th part of my popgen and aDNA methods series, we cover the basic intuition behind an f4-statistic and how it can be used to learn about relatedness and history.

16,802 просмотров • 4 месяцев назад

Part 3 in my series on population genetics: In this video I try to give viewers an intuitive understanding of FST via a little game I call "guess the gamete"

Part 3 in my series on population genetics: In this video I try to give viewers an intuitive understanding of FST via a little game I call "guess the gamete"

20,240 просмотров • 5 месяцев назад

Genetic data is often on the order of 1-million-Dimensional. How on earth does one visualize this? PCA! In my sixth popgen / ancient DNA video, I give a (very) high level intuition for what PCAs are doing and how we can use them to reduce them dimensions of genetic data

Genetic data is often on the order of 1-million-Dimensional. How on earth does one visualize this? PCA! In my sixth popgen / ancient DNA video, I give a (very) high level intuition for what PCAs are doing and how we can use them to reduce them dimensions of genetic data

17,156 просмотров • 4 месяцев назад

Interview with David about the new study on selection in West Eurasia by him and Ali Akbari. Definitely worth a listen

Interview with David about the new study on selection in West Eurasia by him and Ali Akbari. Definitely worth a listen

12,428 просмотров • 3 месяцев назад

Part 5 in my population genetics video series, the final on FST. In this video I explain the main formulas and estimators one tends to encounter for FST and give some intuition about how they are derived.

Part 5 in my population genetics video series, the final on FST. In this video I explain the main formulas and estimators one tends to encounter for FST and give some intuition about how they are derived.

12,852 просмотров • 4 месяцев назад

Part 4 in my population genetics video continuing on FST. In this video I give examples of why you should think of FST as differentiability, not distance, then relate it to heterozygosity and variance before giving an intuition of what an FST of, for example, 0.03 means

Part 4 in my population genetics video continuing on FST. In this video I give examples of why you should think of FST as differentiability, not distance, then relate it to heterozygosity and variance before giving an intuition of what an FST of, for example, 0.03 means

11,780 просмотров • 5 месяцев назад

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