1.

Which blood type is a universal donor?(a) O –(b) O +(c) AB –(d) AB +I had been asked this question in exam.Question is taken from Blood Groups topic in division Pathology of Clinical Science

Answer»

Right choice is (a) O –

To explain: In O- the antigens for A and B are both absent and so is the ANTIGEN D (more commonly known as the RHESUS factor). Thus, O- can donate blood to all TYPES of blood GROUPS quite safely.



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