maddy3lizabeth
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Three portions of a blood sample show clumps in anti-a serum, but not anti-b or anti-rh sera.
Which blood type does the test indicate?

A. A negative (A-)

B. AB positive (AB+)

C. B negative (B-)

D. O negative (O-)

Respuesta :

If you add a drop of anti-A serum and it clumps the blood type has blood type B markers that will fight off the A serum making the blood type B....  

I got this because...  

there is A, B, AB, and O blood  

A has anti-B clumping proteins  

B has anti-A clumping proteins  

AB has no clumping proteins  

O has anti-A, anti-B, and anti-AB clumping proteins  

so the only on one with anti-A clumping proteins is blood type B  

hope this helps :)

luisvaschetto

The blood type that a blood sample showing clumps in anti-a serum, but not anti-b or anti-rh sera is A negative (A-) (Option A).

  • The membrane of red blood cells contains many different types of antigens. For example, individuals having a blood type AB have red blood cells with both A and B antigens.

  • A O negative (O-) blood test indicates that the blood sample does not have any antigens, whereas an A negative (A-) test indicates that the blood sample contains only A antigens.

  • It is for that reason that O-negative individuals are universal donors because persons having this type of blood are compatible with all blood types.

  • Moreover, AB-positive individuals are universal recipients because persons with this type of blood can receive blood from all blood types.

In conclusion, the blood type that a blood sample showing clumps in anti-a serum, but not anti-b or anti-rh sera is A negative (A-) (Option A).

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