Multiple Choice
Which of the following features are characteristic of autosomal recessive inheritance?
The following pedigree is for the ABO blood type group, which is an example of autosomal inheritance. Using the IA, IB, i for the alleles, fill in the top half of each box/circle with the genotype. Also, fill in the bottom half of each box/circle with the phenotype (A, B, AB, or O blood type). If it is impossible to know for certain a specific allele in the genotype, then place a '?' as a placeholder to represent the allele that is in question.
The pedigree chart shown depicts the inheritance pattern of __________.