Many human traits, such as blood type, are a result of more than two types of alleles. This inheritance pattern is called A) codominant . B) multiple alleles. C) incomplete dominance. D) diploid characteristics.
The inheritance pattern when a human trait has more than two allele types would be multiple alleles. Therefore, the answer is B. Multiple alleles takes place when two or more different forms of genes occupy in the same position on a chromosome.