No Saxon invasion?

[authun]

You say "[a]nyone who interprets the Y chromosome as an indicator of ethnicity is wrong to do so" but then you put forward an example of "a Jute, with a uniquely distinctive Jutish yDNA marker".

As a reductio ad absurdum argument yes. The contradiction is that the yDNA implies a Jutish origin whereas the mtDNA implies a British origin. Depending on what looks at, one would arrive at different conclusions if one interprets genetics in ethnic terms. It is of course nonesense hence I use it, as explained, as an example why "Anyone who interprets the Y chromosome as an indicator of ethnicity is wrong to do so."

In addition to this example of the dangers of assigning ethnic labels to genetic markers, I use another example to illustrate the dangers of associating single haplogroups with separate or distinct groups of peoples. If a man with the yDNA marker L22 fathered a son, that son would also have the same marker, L22 in his yDNA. However, during conception of his second son, a polymorphism occured and a new distinctive marker was created, P109. This actually happened. The two brothers have different Y chromosomes, one is L22 and the other P109. They are still brothers and still live in the same house. They don't suddenly belong to different tribes.

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authun