Multiple alleles control inheritance of

Options

A. phenylketonuria
B. colour blindness
C. sickle-cell anaemia
D. blood groups

Answer

D

Explanation

Multiple alleles control inheritance of blood groups in human A, B, O blood group system is found in humans where the allele `I^(A)` for A antigen is codominant with the allele `I^(B)` for the B antigen.
Both `I^(A)` and `I^(B)` are completely dominant to the allele `I^(O)`.
Hierarchy of dominance relationship is symbolised as `(I^(A) = I^(B)) gt I^(O)`.