I couldn't control myself as the article heading used my regular post caption for the precise reason.
if a specific gene located on a non-sex chromosome is turned off, cells in the ovaries of adult female mice turn into cells typically found in testes. Their study, published in Cell, challenges the long-held assumption that the development of female traits is a default pathway. At the same time, it grants a valuable insight into how sex determination evolved.
In humans and most other mammals, an individual's sex is determined by its sex chromosomes: females have two X chromosomes, males have one X and one Y. Scientists had long assumed that the female pathway -- the development of ovaries and all the other traits that make a female -- was a kind of default: if it had a gene called Sry, which is located on the Y chromosome, an embryo would develop into a male, if not, then the result would be a female. But in adult animals it is the male pathway that needs to be actively suppressed,
I don't think male or female default pathway makes much sense. Or it doesn't at least to me. However, considering the fact that only one of the two X-chromosomes in female is activated, my belief is that genetically male is a high feature being than female. In other words, male is naturally both male and female but female is only female and wannabe male. In a different way, the present study also supports this position.
Via
Science Daily
