Questions: Multiple Choice Question Antibodies to Rh antigen will be found in the plasma in an Rh- individual who has been exposed to Rh+ blood without prior exposure to an antigen the individual does not possess some but not all of the time of an Rh+ individual but not in the plasma of an Rh- individual

Multiple Choice Question Antibodies to Rh antigen will be found in the plasma in an Rh- individual who has been exposed to Rh+ blood without prior exposure to an antigen the individual does not possess some but not all of the time of an Rh+ individual but not in the plasma of an Rh- individual

Transcript text: Multiple Choice Question Antibodies to Rh antigen will be found in the plasma $\qquad$ in an $\mathrm{Rh}^{-}$individual who has been exposed to $\mathrm{Rh}^{+}$blood without prior exposure to an antigen the individual does not posses some but not all of the time of an $\mathrm{Rh}^{+}$individual but not in the plasma of an $\mathrm{Rh}^{-}$individual

Solution

The answer is the first one: in an $\mathrm{Rh}^{-}$ individual who has been exposed to $\mathrm{Rh}^{+}$ blood.

Explanation for each option:

In an $\mathrm{Rh}^{-}$ individual who has been exposed to $\mathrm{Rh}^{+}$ blood: This is correct. An $\mathrm{Rh}^{-}$ individual does not naturally have antibodies against the Rh antigen. However, if they are exposed to $\mathrm{Rh}^{+}$ blood, such as through a blood transfusion or during pregnancy, their immune system may produce antibodies against the Rh antigen.
Without prior exposure to an antigen the individual does not possess: This is incorrect. Antibodies to the Rh antigen are not naturally present in $\mathrm{Rh}^{-}$ individuals without prior exposure. The immune system needs to be exposed to the antigen to produce antibodies.
Some but not all of the time: This is incorrect in the context of the question. Antibodies to the Rh antigen will only be present in $\mathrm{Rh}^{-}$ individuals if they have been exposed to $\mathrm{Rh}^{+}$ blood.
Of an $\mathrm{Rh}^{+}$ individual but not in the plasma of an $\mathrm{Rh}^{-}$ individual: This is incorrect. $\mathrm{Rh}^{+}$ individuals do not produce antibodies against the Rh antigen because it is a normal part of their red blood cells. $\mathrm{Rh}^{-}$ individuals can produce these antibodies if exposed to the antigen.

In summary, antibodies to the Rh antigen are found in the plasma of an $\mathrm{Rh}^{-}$ individual who has been exposed to $\mathrm{Rh}^{+}$ blood.

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