What are three antigens that may be present on human red blood cells?

Answer 1

A ,B ,or A and B but there is also O

Certain human blood types have red blood cells with A antigens, which are Anti-B, or the complete opposite of B and AB blood.

Some human red blood cells have B antigens; these people have blood type B, which is completely opposite to A and AB blood in terms of B antigens.

Some human red blood cells contain the A and B antigens; these individuals have type AB blood; these blood cells are not anti-A or anti-B, so if the recipient received donated blood, they would be regarded as a universal recipient since they can receive type A or type B blood.

Some people are type O, meaning they can only have O blood but are universal blood donors despite having neither A nor B antigens nor antibodies in their blood.

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Answer 2

A, B, Rh (D).

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

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