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The Daily Insight

What are all the possible blood types of their baby

Author

Olivia Owen

Published Apr 03, 2026

O negative. This blood type doesn’t have A or B markers, and it doesn’t have Rh factor.O positive. This blood type doesn’t have A or B markers, but it does have Rh factor. … A negative. … A positive. … B negative. … B positive. … AB negative. … AB positive.

What are the possible blood types of their offspring?

Blood TypeMotherFatherABAA or OAB, A, B or OBAB, A, B or OB or OABAB or A or BAB or A or B

Can parents with A and B blood type have an O baby?

Someone who has an A and a B version of the blood type gene makes both A and B proteins. 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.

Can blood type A and O have a baby?

An A+ parent and an O+ parent can definitely have an O- child.

Can two O positive parents make an O negative child?

A. Before I delve into the science, let me quickly stop any tongues that might be wagging if you are asking about a paternity debate: Yes, two O-positive parents could have any number of O-negative children. In fact, according to the experts, most children who are O-negative have parents who are O-positive.

Can B and B have a baby?

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, B or AB blood types.

What is the rarest blood type?

In the U.S., the blood type AB, Rh negative is considered the rarest, while O positive is most common.

What's the golden blood type?

The golden blood type or Rh null blood group contains no Rh antigens (proteins) on the red blood cell (RBC). This is the rarest blood group in the world, with less than 50 individuals having this blood group.

What are the 3 rarest blood types?

  • O positive: 35%
  • O negative: 13%
  • A positive: 30%
  • A negative: 8%
  • B positive: 8%
  • B negative: 2%
  • AB positive: 2%
  • AB negative: 1%
Can a+ marry O+?

(1)Yes a female with A+ could get marry to guys with A+, A-,O+, and O-. They are incredibly appropriate.

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How do I find out my blood type without a test?

Without drawing blood A person may be able to use a saliva sample to test for their blood type, as some people produce the characteristic antigens in their saliva. According to 2018 research , if a person does secrete these antigens in their saliva, a sample of dried saliva can reliably indicate their blood type.

Do siblings have same blood type?

While a child could have the same blood type as one of his/her parents, it doesn’t always happen that way. For example, parents with AB and O blood types can either have children with blood type A or blood type B. These two types are definitely different than parents’ blood types!

What two blood types are not pregnant?

In addition to Rhesus Disease, there is also a condition called ABO incompatibility. This can happen when mom’s blood type is different than baby’s (if mom is blood type O, and baby is type A, B, or AB; if mom is blood type A and baby is AB or B; if mom is blood type B and baby is A or AB).

How do you find out your blood type?

  1. Ask your parents or doctor.
  2. Blood draw. Next time you go in to get your blood drawn, ask to know your blood type. …
  3. At-home blood test. You can also purchase an at-home blood test online and have it shipped to your door. …
  4. Blood donation. …
  5. Saliva test.

Could a man with O blood type be the father of an AB child?

Genotype (DNA)Blood TypeAO or AAA blood typeABAB blood typeBO or BBB blood typeOOO blood type

What happens if husband and wife have same blood group?

Blood group compatibility for marriage is limited to possible Rh factor incompatibility during pregnancy. And that is further limited to pregnancy where both partners are the biological parents.

Which blood group should not marry?

Transfer of maternal antibodies across the placenta occurs. This happens when Rh +ve man marries Rh-ve lady. So Rh +ve man should try to avoid marrying Rh-ve lady. Newborn with erythroblastosis fetalis may need an exchange transfusion.

What will never be fathers blood?

The father’s blood group cannot be ‘AB‘ if the mother has blood group ‘B’ and child blood group is ‘O’. If the mother has a blood group ‘B’, then the alleles present can be either of the two- . If the child has the blood group ‘O’, then the alleles present must be as this is a recessive trait.

What blood type are my parents if I'm a positive?

If my blood group is A positive, does that mean one of my parents would have to be the same? No it doesn’t. 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.

Can O+ marry B+?

Men with B+ blood group can marry women with O+ blood group.

Is O positive a rare blood type?

O positive is the most common blood type as around 35% of our blood donors have it. The second most common blood type is A positive (30%), while AB negative (1%) is the rarest.

What does A1 blood type mean?

Subtypes for blood type A include A1, A2, Ax, Aint and others, but the most common is A1. • If the donor is not subtype A1, it means they have less A antigen on their red blood cells (RBCs) and organs, which allows them to donate to recipients outside of their primary blood type.

What is the newest blood type?

Researchers at the University of Vermont have made a discovery that could save the lives of thousands of people. They’ve identified two new blood types called Langereis and Junior. They revealed their findings in the February issue of Nature Genetics.

Can a+ donate to O+?

Blood O+ can donate to A+, B+, AB+ and O+ Blood O- can donate to A+, A-, B+, B-, AB+, AB-, O+ and O- Blood A+ can donate to A+ and AB+

Can an O positive mom have an A positive baby?

ABO incompatibility can occur only if a woman with type O blood has a baby whose blood is type A, type B, or type AB. If a baby is type O there won’t be a problem with a negative immune response because type O blood cells don’t have immune-response triggering antigens.

Can O+ and AB+ have a baby?

In most cases, an O parent and an AB parent will have only A or B kids. It is only very rarely that they might have an AB or an O child (see the links at the end for these exceptions). Isn’t genetics fun! What I’ll do for the rest of this answer is go through why an O parent and an AB parent will have only A or B kids.

What's the best blood type to have?

Types O negative and O positive are best suited to donate red blood cells. O negative is the universal blood type, meaning that anyone can receive your blood. And O- and O+ blood are both extra special when it comes to traumas where there is no time for blood typing.

Can I ask my doctor for my blood type?

If your doctor has drawn or tested your blood before, it is likely they have your blood type on file. … You can ask your doctor to conduct a blood test if your doctor doesn’t have your blood type on file, call or visit your doctor’s office and ask for a blood test to determine your blood type.

Are you more related to mother or father?

Genetically, you actually carry more of your mother’s genes than your father’s. That’s because of little organelles that live within your cells, the mitochondria, which you only receive from your mother.

Why is O positive special?

Type O positive blood is critical in trauma care. Those with O positive blood can only receive transfusions from O positive or O negative blood types. Type O positive blood is one of the first to run out during a shortage due to its high demand.

Is O Negative a rare blood type?

Only 7% of the population are O negative. However, the need for O negative blood is the highest because it is used most often during emergencies. The need for O+ is high because it is the most frequently occurring blood type (37% of the population). The universal red cell donor has Type O negative blood.