An international team of researchers reached a major milestone in decoding the human genome by linking genes across all chromosomes of many individual people to specific tissues and disease processes.

Depending on the type of intersex variation someone has, it could alter their chromosome makeup, genital appearance, hormonal balance, and more. Share on Pinterest Maskot/Getty Images We’re born with ...

This is a gradual change in a characteristic across a population, it could be human height, mass and shoe size. Human beings have one of four blood groups, A, B, AB or O. There are no values in ...