Question 40
Transport in AnimalsA person with type O blood can donate to a patient with type A because the donor's blood
- A.lacks antigens
- B.lacks anti-A antibodies
- C.lacks anti-B antibodies
- D.has both anti-A and anti-B antibodies
Show the answer and explanation
Answer: A (lacks antigens)
Explanation
Group O red cells carry no A or B antigens, so the patient's antibodies have nothing to clump; that is why O is the universal donor.