Table of Contents
Could a man with type A blood be the father of an O child?
For example, two O blood type parents can produce a child with only O blood type. Two parents with A blood type can produce a child with either A or O blood types….PATERNITY CAN BE RULED OUT BASED ON BLOOD TYPE MATCHING IN MANY CASES.
| Genotype (DNA) | Blood Type |
|---|---|
| AO or AA | A blood type |
| AB | AB blood type |
| BO or BB | B blood type |
Do you have to have the same blood type as your parents?
Neither of your parents has to have the same blood type as you. For example if one of your parents was AB+ and the other was O+, they could only have A and B kids. There are lots of other possible combinations where two parents without blood type A can have a child with one.
Can two A+ make an O blood type?
Absolutely. A is dominant to type O blood. If you are type A you can either have the genotype “AA” or “Ai”, and if you are type O you will have the genotype “ii”. If both parents are heterozygous for type A blood (they both have “Ai”) then one fourth of their offspring will have type O blood (genotype “ii”).
Can you have a child with any blood type?
Two parents with A blood type can produce a child with either A or O blood types. Two parents with B blood type can produce a child with either B or O blood type. One parent with A and another with B can produce a child with A, B, AB or O blood types. If one parent has A and another has AB, they can either produce a child with A,
Can a man with B or O blood father a child?
The letters listed in that cell are the possible ABO groups of the father. For example, if the child is A and the mother is O, the father MUST be A or AB. It is biologically impossible for a man with B or O blood to have fathered this child.
Do you have the same blood group as your father?
Sons may or may not have the same blood groups as their fathers. It depends on the blood group of their father as well as their mother.
How are blood types used to determine paternity?
Using Blood Types as a Cheap Paternity Test. For example, if the child is A and the mother is O, the father MUST be A or AB. It is biologically impossible for a man with B or O blood to have fathered this child. NOTE: The two blank cells represent impossible combinations between mother and child, regardless of the father.