Elliptocytosis and blood group Rh+ are determined by the dominant alleles of genes Еl and D ...

Elliptocytosis and blood group Rh+ are determined by the dominant alleles of genes Еl and D respectively. Both genes are situated in the same chromosome at the distance 3 cM. There is a man who is heterozygous for both genes. Both genes are situated in the same chromosome at the distance 3 cM. There is a man who is heterozygous for both genes. He inherited Rh+ from his mother and elliptocytosis from his father. His wife has blood group Rh- and normal erythrocytes. What is teh probability of giving birth to a child with ellyptocytosis and Rh+?