There is a possibility of exposure of the maternal blood [of Rh -ve mother] to small amounts of Rh +ve blood from the fetus during the:

1. First trimester of any pregnancy

2. Third trimester of the second pregnancy only

3. Delivery of the child

4. There is no such possibility

After examining the blood groups of husband and wife, the doctor advised them not to have more than one child. The blood groups of the couple are likely to be

(1)  Male Rh^- and Female Rh⁺

(2)  Male Rh⁺ and Female Rh⁺

(3)  Male Rh⁺ and Female Rh^-

(4)  Male Rh^- and Female Rh^-

The condition of erythroblastosis foetalis is–

(1) Rh^– female and Rh⁺ male with first Rh⁺ baby

(2) Rh⁺ female and Rh⁺ male with first Rh^– baby

(3) Rh⁺ female and Rh^– male with first Rh^– baby

(4) Rh^– female and Rh^– male with first Rh⁺ baby

Match the following:

1. p–g; q–h; r–e; s–f

2. p–f; q–e; r–h; s–g

3. p–e; q–h; r–f; s–g

4. p–f; q–g; r–h; s–e

______ population has Rh ______ on the surface of ______ present in their ______.

(1) 20%, antigen, platelets, plasma

(2) 80%, antigen, RBC, blood

(3) 80%, antibody, platelet, plasma

(4) 20%, antibody, RBC, blood