[ 263 ] Life Science GED ® TEST SCIENCE FLASH REVIEW • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • Every person has two copies, or alleles, of the ABO blood type gene. A person’s ABO blood type is determined by their specific combination of alleles. The table shows the allele combinations that cause the four different ABO blood types. Blood Type Genotype A I A I A or I A i B I B I B or I B i AB I A I B O ii A mother’s allele combination is I A i and a father’s allele combination is I A I B . Which of the following statements is true about the blood type of their first child? A. The child will have the same blood type as the mother. B. The child cannot have the father’s blood type. C. The child will have a blood type different from both parents. D. The child cannot have blood type O.