Gustave Clarence Rodolphe Boulanger paintings

Gustave Clarence Rodolphe Boulanger paintings
Guillaume Seignac paintings

and Y Chromosome ContributionsResearchers, for example, used to consider non-sex cells as essentially asexual because they had the same genetic activity derived from one of the X chromosomes, says Pardue.Scientists used to think the Y chromosome found in all male cells of the body and one of the two X chromosomes in all women's cells were inactive, Pardue says.But now evidence shows the Y chromosome and the apparently inactive X chromosome also play a role in the cell's life.All cells in the body have 22 pairs of chromosome plus either two X chromosomes in female cells or an X and a Y chromosome in male cells.Although every cell in the body has the same genetic complement, cells behave differently because during development each cell goes through a process to become the tissue it was meant to become, such as liver or kidney.