2) Below is a pedigree showing inheritance of a rare form of polydactyly (> than 5 fingers). Individuals I-2, II-1, II-7 and III-8 are from the general population where the disease allele is very rare (and so for the purposes of this question you can assume these people are non-carriers). Previous studies have revealed that penetrance of the disease trait is 95%. (i) Assuming that this disease allele is not completely penetrant, what is the most likely mode of inheritance and are other modes possible but less likely