Questions: A patient's blood does not agglutinate when either anti-A or anti-B antiserum is added to it. Name the patient's blood type.

A patient's blood does not agglutinate when either anti-A or anti-B antiserum is added to it. Name the patient's blood type.
Transcript text: A patient's blood does not agglutinate when either anti-A or anti-B antiserum is added to it. Name the patient's blood type.
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Solution

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The answer is the first one: 0 (or O).

Explanation for each option:

  • 0 (or O): This is the correct answer. Blood type O does not have A or B antigens on the surface of the red blood cells, so it does not agglutinate when either anti-A or anti-B antiserum is added.
  • B: This is incorrect. Blood type B has B antigens on the surface of the red blood cells, so it would agglutinate when anti-B antiserum is added.
  • $A B$: This is incorrect. Blood type AB has both A and B antigens on the surface of the red blood cells, so it would agglutinate when either anti-A or anti-B antiserum is added.
  • A: This is incorrect. Blood type A has A antigens on the surface of the red blood cells, so it would agglutinate when anti-A antiserum is added.

Summary: The patient's blood type is O, as it does not agglutinate with either anti-A or anti-B antiserum.

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