What we know and what we don’t know about genetics of King Tutankhamun?

What we know:

King Tut’s DNA has been tested and the y-DNA is recorded as R1b. Frequent in today’s Celts, likely coming from the ancestors to the Yamnaya who used to control the greater Black Sea region who also later became the Aryans in the east.
King Tut’s blood type was A2

What we don’t know:

His Rh factor. I have posted part of my personal conversation with Robert Connolly here.
His mtDNA. This is strange considering we have the information on his y-DNA data. As previously stated, a lot of debates and also decisions on info released is agenda-driven.

Who were the Yamnaya?

UPDATE: His mtDNA was K

What makes no sense:

“He was Caucasian, because his y-DNA is R1b”. Maybe he was, but this is hardly proof. In genetics, we don’t like labels based on optics, but prefer the whole picture of genetic makeup. What we know for certain is that the data available lacks traces of Sub-Saharan and indicates common ancestry with not just today’s Celts, but also original inhabitants of the Fertile Crescent.
“The Pharaos were black”, “The Pharaos were white”. First of all, which dynasty are we referring to?