A Brazilian woman was shocked to learn that she was carrying male chromosomes. The doctors found out about it after she had a ...

Doctors in Brazil discover and confirm that a woman has blood with male chromosomes, a rare case of human chimerism.

England beat Australia by four wickets in two-day Test at Melbourne to avoid Ashes whitewash; Jacob Bethell top-scores in England second innings; tourists 3-1 down ahead of final Test in Sydney from ...

Klinefelter syndrome is the most common sex-chromosome disorder; it affects approximately one in every 660 men. This syndrome is characterized by the presence of one or more extra X chromosomes, and ...