How Sex Genes Are More Complicated Than You Thought
XX and XY are the chromosome pairs that determine your sex but what happens when you're born with XXX or XYY? How often does this happen? Check out ...
========== We all learned it in school: when it comes
to sex and gender women have two X chromosomes and men have XY and that’s all there is
right? Is anything that simple on this show? Hello Everyone, Crystal here with DNews. Science
has known for a while that it is possible for humans to be born with more or less than
two sex chromosomes. These unusual combinations are rare in the human population and in most
cases are not something you inherit from your parents, but from an error during meiosis
leading to an inappropriate number of sex chromosomes in the human gametes. (yes, yes,
… think back to high school biology …) Usually mature eggs and sperm carry only one sex chromosome,
in the case of sperm either an X or a Y. When exceptions to this rule occur, it leads to
chromosomal abnormalities. For inst...