Answer:
Genotypes: Bo (50%), oo (50%)
Phenotypes: Blood type B (50%), blood type O (50%)
Explanation:
In Bo, B is expressed because B is dominant and o is recessive
Half (2/4 [1 out of 4]) of the combinations are Bo, so its equal to 50%
Half (2/4 [1 out of 4]) of the combinations are oo, so it's equal to 50%