Which statement about the inheritance of blood types in humans is correct? A) Alleles I^A and i are dominant to the allele I^B. B) Alleles I^B and i are dominant to the allele I^A C) Alleles I^A and I^B are dominant to the allele i. D) Alleles I^A,IB and i are codominant.

Question

Quizplus · Accepted Answer

The inheritance of blood types in humans is controlled by three alleles, IA, IB, and i. Both IA and IB are codominant and dominant to the recessive i allele. Therefore, option C is the correct statement as both the IA and IB alleles are dominant to the i allele. Option A and B are incorrect as they give dominance to a particular allele that is not supported by the inheritance pattern. Option D is also incorrect as it suggests codominance between the IA and IB alleles, which is not true.

Which Statement About the Inheritance of Blood Types in Humans