Female mammals have two x chromosomes, one from their mother and one from their father. during x inactivation, one x chromosome
in each embryonic cell is randomly inactivated; therefore, all of the tissues that arise from that cell have the same inactivated x chromosome. female mammals are therefore considered to be __________ of the maternal and paternal cells.
Because of the fact that female mammals have chromosomes from both parents (from the father and from the mother) and all cells have the same inactivated X chromosome female mammals are considered to be mosaic <span>of the maternal and paternal cells.</span>