N.B. Males can get both their male-line (Y-chromosome) and female-line
(mitochondrial DNA) analysed, but the Genographic Project only does
the male line for you if you put yourself down as a male. A cynic
like me would say that that's because women can only get their female
line done, having no Y-chromosome -- if it were the other way around,
women would be getting both results for the price of one! The Genographic
Project suggested (by email) that I could put myself down as a female
and pay for another test, in which case I would get results for my
female line as well -- or a female relative (a sister or mother --
but a maternal grandmother or double-cousin would presumably do) could
get hers done.