>>4763156 (lb pb)
what Y-dna haplotypes are the XXY individuals?
are certain Y-dna haplotypes more likely to produce XXY ?
could the "bloodline" thing be a way of attempting to breed for more XXY ?
Y-chromosome is highly conserved, doesn't change much except through mutation. It's like every man is 1/4 a clone of his direct male line and 3/4 a mix of maternal/paternal X chromosomes.
This is perhaps why we are so wired to want sons.
if every man is basically 1/4 a clone of one of a dozen Y-haplotypes, explains many human conflicts. Seems to me that haplogroup "I" pretty much runs the world, using R1B as cannon fodder and everyone else as slaves. There's probably a smaller haplogroup or a family of mutants somewhere running things behind the scenes.
My Y-haplogroup is almost extinct, because we rarely have sons. Unknown if there is any correlation between conception of males and picking the right X haplogroup or haplotype.