Question

Which one of the following statements is correct?

Options

• Allele I^A and I^B are co-dominant

• Allele I^A is dominant over I^B

• Allele i is dominant over both I^A and I^B

• Allele I^B is dominant over I^A

Answer 1

Allele I^A and I^B are co-dominant

Explanation:

Alleles I^A and I^B are found on the RBC of human blood and they are producing proteins A and B on the RBC surface. When these two alleles are present they produce both proteins A & B on the RBC surface giving an example of Co dominance.