Question

Colleen has type O blood her mother has type A and her father has B explain how genetics makes it possible by identifying the genotypes of mom and dad

Answer 1

Maybe both of the parent have one O

Step-by-step explanation:

Let's say colleens dad's alleles are BO and her mom's are AO even though A and B are the dominant ones there is still about a 50 or less chance that she gets O blood type,sorry if this isn't any help!!