6. Olivia, who has blood type B, had an immune reaction when transfused with blo

Question

6. Olivia, who has blood type B, had an immune reaction when transfused with blood type A Her son, blood type AB, had no such reaction when translused with blood type A Why? a. The gene for type A is dominant over the gene over the gene for type B b. The gene for type A is incompletely dominant over the gene for type B c. Blood type genes are sex-linked, so the type B gene is inactive in her son. d. Both alleles are active in her son Name: 7. In labrador retrievers, gene E codes for presence ofl pigment (E pigment,e no pigment) Gene B encodes for the amount of pigment deposited (B a lot deposited, b less deposited). Which individual would have a yelow coar? b. EeBb ?.eeBB d. Eebb 8. Which of the following best represents the above example with the labs? a. polygenic inheritance b, codominance d. pleiotropy e. epistasis 9. Only affected individuals are shaded. Which is the most likely mode of inheritance? a. autosomal dominant 10. Cross 2 heterozygotes (HhPp) and show both gamete and offspring possibilities in a Punnett Square.

Explanation / Answer

6. d. both alleles are active in her son.

Since both alleles are active, so the son's blood has both a and B antigen, so during transfusion happens from A blood type donor, no immune response is mounted.

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