Blood phenotype AB have:
Correct answer: D. Neither anti A nor Anti B antibodies
- A. Anti A antibodies
- B. Anti B antibodies
- C. Both Anti A and B antibodies
- D. Neither anti A nor Anti B antibodies
Explanation
The AB blood phenotype has both A and B antigens on the surface of red blood cells. As a result, individuals with AB blood type do not produce anti-A or anti-B antibodies, allowing them to receive blood from any ABO blood type. This characteristic makes them universal recipients in the context of blood transfusions. Option A is incorrect because anti-A antibodies are present in phenotype B. Option B is incorrect because anti-B antibodies are present in phenotype A. Option C is incorrect because both anti-A and anti-B antibodies are present in phenotype O.
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About Inheritance
Mendel's laws explain segregation, independent assortment and the prediction of genetic ratios using alleles, genotypes and phenotypes. The chapter also covers linked genes, recombination and crossing over during meiosis, then applies pedigree reasoning to X-linked recessive traits, which show different inheritance patterns in males and females.
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