The gene “I” for ABO blood group system exists in………multiple alleles that have been produced through mutation.
a) two
b) three
c) four
d) six
Explanation: IA producing antigen-A, IB producing antigen-B and io is non-antigen producing allele
Which of the following is/are possible genotype/s for blood group A in ABO blood group system in humans?
a) IA IA
b) IA io
c) IA IB
d) both a and b
Which of the following is/are possible genotype/s for blood group B in ABO blood group system in humans?
a) IB IA
b) IB io
c) IB IB
d) both b and c
Which of the following is/are possible genotype/s for blood group AB in ABO blood group system in humans?
a) IA IA
b) IA io
c) IA IB
d) both a and b
Which of the following is/are possible genotype/s for blood group O in ABO blood group system in humans?
a) IA IA
b) IA io
c) IB io
d) io io
In ABO blood group system, allele IA is completely dominant over……..
a) IB
b) io
c) both a and b
d) none of them
