Genetic linkage mapping for a large number of families identifies 4% recombination between the genes for {\rm Rh} blood type and elliptocytosis. At the {\rm Rh} locus, alleles R and r control {\rm Rh}+ and {\rm Rh}- blood types. Allele E producing elliptocytosis is dominant to the wild-type recessive allele e. Tom and Terri each have elliptocytosis, and each is {\rm Rh}+. Tom's mother has elliptocytosis and is {\rm Rh}- while his father is healthy and has {\rm Rh}+. Terri's father is {\rm Rh}+ and has elliptocytosis; Terri's mother is {\rm Rh}- and is healthy.
What is the probability that the first child of Tom and Terri will be Rh- and have elliptocytosis?
What is the probability that a child of Tom and Terri who is Rh+ will have elliptocytosis?
I want to understand the process not necessarily the answer please