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.
Unlike the paired autosomes, in which each member normally carries alleles (forms) of the same genes, the paired sex chromosomes do not carry an identical complement of genetic information. The X chromosome, being larger, carries many more genes than does the Y. Traits controlled by genes found only on the X chromosome are said to be sex-linked (see linkage group). Recessive sex-linked traits, such as hemophilia and redâgreen colour blindness, occur far more frequently in men than in women.