Question

The three different alleles of human ABO blood types will produce how many genotypes and phenotypes respectively-

• A. 4 & 6
• B. 6 & 4
• C. 6 & 6
• D. 4 & 4

Answer 1

The correct option is B 6 & 4

There are three different alleles for human blood type, known as IA, IB, and i. Description of the pair of alleles in our DNA is called the genotype. Since there are three different alleles, there are a total of six different genotypes at the human ABO genetic locus. The different possible genotypes are AA, AO, BB, BO, AB, and OO.

The possible human phenotypes for blood group are type A, type B, type AB, and type O.

So the answer is '6 & 4'.