No. The child would receive type a antigens from both of their parents and no type b antigens.
It could be A (25%) or B (25%) or AB (25%) or O (25%) blood group
The father must have a blood type of B or AB.
I assume you are talking about blood type, and it would depend. According to you the phenotype is type A on the mother, and type B on the father.A and B are both co-dominant, and the O is...
Sensory neuron?