Jon Snow and Daenerys Targaryen are genetically similar to full-siblings or mother and son

I’ve posted on this before. So I will post again just to reiterate something: in terms of genes, Jon Snow and Daenerys Targaryen are much closer to being full-siblings than they are to being aunt and nephew.

You get different numbers depending on how deeply you look at the pedigree of the two. But their relatedness is probably above 40% and below 50%. Others have confirmed:

The verbal reason without math and genealogies is simple: Daenerys Targaryen comes from an inbred lineage, and more importantly, two generations of brother-sister marriages. This means that Daenerys Targaryen and Rhaegar Targaryen were genetically much more similar than typical full-siblings. Because of this, Jon Snow and Daenerys Targaryen are much more genetically similar than typical aunts and nephews, because Jon Snow’s father was to a first approximation genetically a male and older version of Daenerys Targaryen.

5 thoughts on “Jon Snow and Daenerys Targaryen are genetically similar to full-siblings or mother and son

  1. Which is why the dragon accepts Jon. Jon smells like Daenerys.

    The first time Jon met a dragon was the big hint.

  2. they probably have extensive inversions or some such mechanism of defeating recombination (including over MHC / body smell identity) ? And maybe disabling in-utero lethal mutations like whole locus deletions in the critical areas of the genomes. Fecundity will be dramatically reduced because a fetus inheriting two IBD chromosomes will be spontaneously aborted, but the ROH in the critical areas of the genome will end up purged.

    The latter is known in animal breeds with “magic properties” like cows with outsize udders, but also far increased gaps between pregnancies due to inviability of an ROH fetus

  3. Are you guys trying to address the scientific mechanism of inbreeding when there are dragons, a dragon ice zombie, and a woman who emerges from fire unscathed?

    It’s magic on top of magic, all the way down.

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  4. I’m ok with the dragons but I didn’t like that they included black people, even if they were eunuchs. It’s a bit of forced diversity.

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