Why You DON’T Descend From All Your Ancestors…

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Why You DON’T Descend From All Your Ancestors…

Chapters:
0:00 Intro
0:46 Your DNA and How You Inherit It
2:25 Y-DNA, Mitochondrial DNA & Autosomal DNA
3:37 Why You DON’T Descend From All Your Ancestors
4:31 Recent Generations Not So Simple
5:51 Exponential Genealogical Ancestors
7:20 How Many Generations Back Do You Inherit DNA From?
8:25 Are You Related to the King of the Franks? Charlemagne
8:43 The Most Recent Common Ancestor of All Living Humans
9:26 Siblings
10:25 Key Takeaways & Your Future DNA

Do you descend from all of your ancestors? Well yes and no at the same time. Let me explain. Now let’s first quickly look at your DNA and how your parents pass on genetic information. Well DNA obviously exists in every cell in your body and holds your genetic code, making up your body’s instruction manual. DNA is made of two linked strands that wind around each other to resemble a twisted ladder — a shape known as a double helix. Each strand has a backbone made of alternating sugar and phosphate groups.

Sources:

From Vikings to Beethoven: what your DNA says about your ancient relatives (nature.com)

Rohde, D., Olson, S. & Chang, J. Modelling the recent common ancestry of all living humans. Nature 431, 562–566 (2004). https://doi.org/10.1038/nature02842

The Geography of Recent Genetic Ancestry across Europe - Peter Ralph, Graham Coop (2013) PLOS https://doi.org/10.1371/journal.pbio....

How Many Ancestors Do I Have? Connect with Family (familysearch.org)

Testing Family Members with AncestryDNA®

Deoxyribonucleic Acid (DNA) (genome.gov)

Callaway, E. Most Europeans share recent ancestors. Nature (2013). https://doi.org/10.1038/nature.2013.1...

Humans Are All More Closely Related Than We Commonly Think | Scientific American

How much of your genome do you inherit from a particular ancestor? | gcbias

Where did your genetic ancestors come from? | gcbias

deoxyribonucleic acid / DNA | Learn Science at Scitable (nature.com)

How many chromosomes do people have?: MedlinePlus Genetics

Why Siblings Can Get Different Results From DNA Ancestry Tests (nationalgeographic.com)

Humans Are All More Closely Related Than We Commonly Think | Scientific American

Unexpected Ancestral Regions (ancestry.com)

Are you related to a King? Why you might carry royal DNA - BBC Future

So you’re related to Charlemagne? You and every other living European… | Adam Rutherford | The Guardian

Creative Commons Imagery:
Chakazul File:World Map of Y-DNA Haplogroups.png - Wikimedia Commons Creative Commons Attribution-Share Alike 3.0 Unported license. File:World Map of Y-DNA Haplogroups.png - Wikimedia Commons

#ancestry #dna #family