Final answer:
Sickle cell anemia is a recessive genetic disorder characterized by mutated hemoglobin causing sickle-shaped red blood cells, while hemophilia is a sex-linked disorder affecting blood clotting.
Step-by-step explanation:
Sickle cell anemia is an autosomal recessive disorder caused by a mutation affecting a single amino acid in the hemoglobin protein. This mutation leads to red blood cells adopting a characteristic sickle shape, which can cause severe health problems in individuals who are homozygous recessive (carry two copies of the mutated gene). Hemophilia, on the other hand, is a sex-linked disorder affecting the X chromosome. It disproportionately affects males, who only need to inherit one copy of the faulty gene to exhibit symptoms, whereas females are generally carriers unless they inherit two copies.
Given the available information, the correct completion of the statement would be 'sickle cell anemia is a recessive single gene disorder, while hemophilia is a sex linked disorder.' This fits with the options presented, specifically option b) sickle cell anemia, hemophilia.