D CTC Questions 4 - 6 . Sickle cell disease : Sickle cell disease ( sickle cell anemia ) is a relatively common disorder in individuals of...

Hello, for this homework I have to determine the mode of inheritance for this pedigree, i believed it to be either x-linked dominant or x-linked recessive but i'm having trouble determining each individuals genotype if this was the case. thank you.

3 .DCTCQuestions 4 - 6 . Sickle cell disease :"Sickle cell disease ( sickle cell anemia ) is a relatively common disorder in individuals offrican descent and affects approximately 1, in 350 African - Americans ( CDC ) . Due to amutation in an autosomal gene for hemoglobin , the homozygous recessive genotype leads to redlood cells that are relatively stiff and sticky , and deform into a sickle shape &le as they losexygen . This leads to problems in the spleen , and anemia .