Question

Why does blood group O donate blood to all groups

Answer 1

Answer:

if someone with group B blood is given group A blood, their anti-A antibodies will attack the group A cells. This is why group A blood must never be given to someone who has group B blood and vice versa. As group O red blood cells do not have any A or B antigens, it can safely be given to any other group.

Explanation:

This is the reason..Read and try to understand