Which of the following antigen of Rh blood group system can cause hemolytic disease of the newborn?
a) E
b) C
c) D
d) e
Explanation: also called erythroblastosis foetalis; It is caused by the destruction of neonatal red blood cells by maternal immunoglobulin G (IgG) antibodies.
ABO blood type antigens sometimes normally secreted by some people in……
a) saliva
b) tears
c) urine
d) all of these
Explanation: such people are called secretors
The dominant secretor gene “Se” is present on chromosome……..
a) 11
b) 9
c) 19
d) X-chromosome
Explanation: secretors are persons having ABO blood antigens in their body fluid
Rh blood group system is encoded by…. gene/s.
a) two
b) three
c) one
d) four
Explanation: C, D and E
The genes C, D and E which encoded Rh blood group system occupy…….tightly linked loci.
a) two
b) three
c) one
d) four
Which of the following locus is of prime importance regarding Rh factor?
a) locus D
b) locus E
c) locus C
d) none of these
Explanation: it is associated with the formation of D antigen commonly known as Rh factor
