The alleles for Immunoglobulins are carried on autosomal chromosomes, not on sex chromosomes. Hence, both parents are equally responsible for a baby's blood type.
Nope.
yes, absolutely
Of course!
yes because maybe the babys mom did. or maybe other generations of the babys parents did. or on and on.
well the answer and yes and no sometimes they have a and some times they don't
well the answer and yes and no sometimes they have a and some times they don't
For a transfusion - blood type O can donate to blood type B. However, blood type O cannot except B-type blood. For offspring, with one O parent and one B parent - the child could be blood type O or B depending on the genotype of the parent with B-type blood.
A B+ parent can have a child with A+ blood. The other parent must be type A or type AB for this to occur.
If a child is born with type AB blood, it means that the child inherited the A antigen from one parent and the B antigen from the other parent. This can occur if one parent has type A blood and the other has type B blood, or if one parent has type AB blood. The child cannot have a parent with type O blood, as type O does not contribute either A or B antigens. Thus, a true statement would be that the child's blood type indicates a combination of alleles from both parents.
Yes, it is possible for a negative blood type parent and a positive blood type parent to have a negative blood type child. This can occur if the positive parent is heterozygous for the Rh factor gene, allowing for the possibility of passing on a negative Rh factor to the child.
No.
Yes, you can have a sister with blood type O and you can be blood type B. This can happen if you have one parent with type AB or B blood, and other parent with type O or B blood.