A certain road accident patient with unknown blood group needs immediate blood transfusion. His one doctor friend at once offers his blood What was the blood group of the donor?
Correct answer: C. Blood group O
- A. Blood group B
- B. Blood group AB
- C. Blood group O
- D. Blood group A
Explanation
Blood group O individuals are considered universal donors because their red blood cells lack A or B antigens on their surfaces. Therefore, individuals with blood group O can donate blood to individuals with any other blood group without causing an adverse immune response due to antigen incompatibility.
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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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