Yes.
Yes it can. The O allele for blood type is recessive, so the father could be carrying it.
B+ or B- or O+ or O-.
Yes
Blood type is a combination of the mother's and the father's genes.
Mother is a plus child 0 plus what could father be?
The children can be A positive or B positive but not O or AB.
Can O plus mother and B plus father can give A plus son?
Yes. I am O positive and my husband is A positive. We have two A positive children and one O positive child.
No
Yes A is dominant over O so if a child inherited the A gene from the father the child would be A Plus (or Rh +) is dominant over Negative (or Rh -). So if mother and father are both heterozygous for the Rh gene then 1 in 4 children will be Negative
No
no
Same mathematical signs equal plus Different mathematical signs equal minus Plus Plus = Plus (+)(+) = + Minus Minus = Plus (-)(-) = + Plus Minus = Minus (+)(-) = - Minus Plus = Minus (-)(+) = - So the direct answer to your question would be: plus minus equals minus
A