Bone marrow is: Tissue in the center or hollow part of the bones. It makes red blood cells. Eventually white blood cells are manufactured. All of this is helps our immune system protect us from infection. Peace and good health. ...Read more
X-linked inheritance means that the gene causing the trait or the disorder is located on the X chromosome. Females have two X chromosomes, while males have one X and one Y chromosome.
Sex-linked traits are usually passed from mother to son by a  defective gene on the X chromosome.    Three examples of sex-linked traits are:    Color blindness â¦   Hemophilia   Baldness   .