question_answer

  Assume the pedigree presented below to be straight forward, with no complication such as illegitimacy. Trait W, found in individuals represented by the shaded symbols, is rare in the population at large. State which of the following pattern of transmission for W are consistent with this pedigree? 

A)  Autosomal recessive            

B)  Autosomal dominant  

C)  X-linked recessive                  

D)  X-linked dominant