34. Pedigree analysis is often used to determine mode of inheritance (dominant or recessive, for example). Be sure to read the "Tips for Pedigree Analysis" in Figure 14.15 in your text.
Consider the following pedigree for the trait albinism (lack of skin pigmentation) in three generations of a family. (Solid symbols represent individuals with albinism.) Complete the unlabeled pedigree by indicating the genotypes for all involved.
From your knowledge of Mendelian inheritance, answer the questions that follow.
a. Is this trait caused by a dominant or recessive allele? What is the evidence for your response?