Which blood group transfusion can be made without any risk?
a) group A to group B
B) Group AB to Group O
c) Group A to group O
d) Group B to group AB
A certain road accident patient with unknown blood group needs immediate blood transfusion. His one doctor friend at once offers his blood. What was the blood group of the donor?
a) blood group A
b) blood group B
c) blood group O
d) blood group AB
Which of the following person is universal recipient?
a) having blood group A
b) having blood group AB
c) having blood group B
d) having blood group O
Explanation: AB blood group person can receive blood all persons because his/her blood has no antibodies i.e. anti-A and anti-B
Who explained the genetic basis of ABO blood system?
a) Carl Correns
b) Bernstein
c) T.H. Morgan
d) Karl Landsteiner
ABO blood group is a multiple allelic trait that is encoded by a...….polymorphic gene/s.
a) one
b) two
c) three
d) four
Gene “I” for ABO blood group is present on chromosomes ………..
a) 21
b) X-chromosomes
c) 9
d) 15
