a patient of thalassemia. Please consult for them, how about the risk of their future children 3. Mrs C has tow sons and two daughter, now she is pregnant with her 5rd child. Her eldest son has Klinefelter syndrome, and the little daughter has LHON. She worried the fetus, please draw the pedigree of the family and consult for them 4. Describe the clinical features of a multigene (i.e, comp disorder and use diagrams to exp lain how multiple genes can combine to produce different levels of risk of developing the disorder among first-, second and third-degree relativesa patient of thalassemia. Please consult for them, how about the risk of their future children. 3. Mrs C has tow sons and two daughter, now she is pregnant with her 5 rd child. Her eldest son has Klinefelter syndrome , and the little daughter has LHON. She worried the fetus, please draw the pedigree of the family and consult for them. 4. Describe the clinical features of a multigene (i.e, “complex” disorder) and use diagrams to explain how multiple genes can combine to produce different levels of risk of developing the disorder among first-, second￾and third-degree relatives