What is heterozygous a blood type?
ABO Blood Types The A and B alleles are dominant to the O allele. When both inherited alleles are O, the genotype is homozygous recessive and the blood type is O. When one of the inherited alleles is A and the other is B, the genotype is heterozygous and the blood type is AB.
What is the genotype of someone who is heterozygous for type B blood?
Their genotype is either AA or AO. Similarly, someone who is blood type B could have a genotype of either BB or BO. A blood test of either type AB or type O is more informative. Someone with blood type AB must have both the A and B alleles.
Can parents with A and B blood type have an O baby?
And so is AB blood type. But someone who has a B and an O version only makes the B protein. They are B blood type but can pass the O onto their kids. So two B parents can make an O child if both parents are BO.
Can Type A and Type B blood make O?
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 O, they can either produce a child with A or O blood types.
What blood type makes B+?
What blood types are compatible for transfusions?
| Blood type | Can donate blood to | Can receive blood from |
|---|---|---|
| B+ | B+, AB+ | B+, B-, O+, O- |
| B- | B-, B+, AB-, AB+ | B-, O- |
| AB+ | AB+ | AB+, AB-, A+, A-, B+, B-, O+, O- |
| AB- | AB-, AB+ | AB-, A-, B-, O- |
Could a man with O blood type be the father of an AB child?
If one parent has A and another has AB, they can either produce a child with A, B or AB blood types. If one parent has A and another has O, they can either produce a child with A or O blood types….PATERNITY CAN BE RULED OUT BASED ON BLOOD TYPE MATCHING IN MANY CASES.
| Genotype (DNA) | Blood Type |
|---|---|
| OO | O blood type |
Can two O positive parents make an A positive child?
Two O parents will get an O child nearly all of the time. But it is technically possible for two O-type parents to have a child with A or B blood, and maybe even AB (although this is really unlikely).
What blood type if parents are AB and O?
Believe it or not, in this case having a blood type different from either parent is by far the most common result. In most cases, an O parent and an AB parent will have only A or B kids.
How rare is AB positive?
Less than 4% of the U.S. population have AB positive blood. AB positive blood type is known as the “universal recipient” because AB positive patients can receive red blood cells from all blood types.