The ABO blood type system and the Rh (which would determine positive or negative are two different blood type antigen groups which are inherited independent of each other.
In order to be sure they child is type O, both parents must be type O. In order to be sure the child is positive, one parent must have both alleles coding for (usually big D) positive.
The ABO blood group is Co dominant. Since you inherent one allele from each parent, both parents must have at least one allele that codes for type O. If both parents contain only one allele for type O, the child has a 25% chance of being type O. If in one parent, both alleles code for type O, there is a 50% chance the child will be type O.
Much the same would true of the Rh blood group system.
A mathematician could tell you how to estimate the odds of having a child who inherits Both two O alleles and at least on Rh positve allele together.
Yes.
Yes.
it is unlikly, but posible
yes
yes it is VERY possible for an o positive father to produce an a child it doesnt really matter what blood type u r!
Yes
Yes. O, Rh positive and B, Rh positive parents may produce an O, Rh positive child.
Yes, two B positives can produce an O positive child.
Yes. The father's phenotype is AO+*; the mother's is OO--.
O positive or O negative.
no
No - blood group O is recessive, two O parents can only produce an O child. A Rh+ mother and Rh- father can produce either a Rh+ or Rh- child - Rh+ is the dominant factor. No - blood group O is recessive, two O parents can only produce an O child. A Rh+ mother and Rh- father can produce either a Rh+ or Rh- child - Rh+ is the dominant factor.