The gene D which is associated with the formation of Rh factor has……alleles.
a) two
b) three
c) one
d) four
Explanation: D (dominant) and d (recessive)
Which of the following person/s is/are Rh positive blood group?
a) DD
b) Dd
c) dd
d) both a and b
Explanation: D is dominant allele and produces Rh factor on RBCs
Which of the following person/s is/are Rh negative blood group?
a) DD
b) Dd
c) dd
d) both b and c
Explanation: d is recessive allele and do not have Rh factor
The …….is notorious in cases where antibodies produced by a pregnant woman react with the red blood cells of her developing foetus.
a) A antigen
b) B antigen
c) Rh factor
d) all of these
The erythroblastosis foetalis arises if the mother is…….foetus us…….
a) Rh-negative- Rh negative
b) Rh positive-Rh negative
c) Rh negative- Rh positive
d) Rh positive-Rh positive
In erythroblastosis foetalis, the mother’s response to the …….exposure is mild.
a) first
b) second
c) third
d) after first
