Mr R married a healthy woman in his home country of Italy an

Mr. R married a healthy woman in his home country of Italy and had three children, a boy with beta-thalassemia minor and two healthy girls. Then, after the death of his wife, Mr. Rimmigrated to the United States, where he married a woman who has beta-thalassemia major. Both of her beta-chain genes are abnormal, but her disease was medically controlled with transfusions and chelation, a treatment to remove excess iron from the body. She has been looking into the possibility of a bone marrow transplant. Why would a bone marrow transplant help someone whose red blood cells had a genetic defect? Bone marrow Erythrocyte Spleen rythropoiesis Erythrocytes Heme Globin Iron t Bilirubin Amino T-iron T-ron EPO Bilirubin Kidneys Bilirubin Bile F-ron Liver Iron from Bile ngestion Bile excreted in urine T-iron Small intestine Large intestine Anus. Circulation Bile excreted in feces

Solution

Bone marrow is the place where RBC are produced. The stem cells responsible for rbc production are defective. To replace those cells, bone marrow transplantation is done.

So the correct option is \"Since her condition is genetic, all her own bone marrow cells carry it and are producing defective erytrocytes.