Use the following pedigree (Figure 14.3) for a family in which dark-shaded symbols represent individuals with one of the two major types of colon cancer. Numbers under the symbols are the individual's age at the time of diagnosis. Figure 14.3 -From this pedigree, how does this trait seem to be inherited?
A) from mothers B) as an autosomal recessive C) as a result of epistasis D) as an autosomal dominant E) as an incomplete dominant