Can two O blood types make an A?

Blood type
Most of this is pretty straightforward. Two O's make O blood type and an A and a B make AB.


Can two O blood types have an a child?

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 even more unlikely). In fact, a child can get almost any kind of blood type if you consider the rule-breaking exceptions.

Can two O+ make an A+?

Theoretically, if both parents are O+, there is no chance of an A+ child. Type O blood is recessive, and must be homozygous to exhibit as the blood type. However, if one parent was mistyped, and carried O but had type A blood as his/her dominant type, then of course this would be possible.


What blood type will a baby have if both parents are O positive?

So, the progeny formed if both parents are of O blood group is O. The Rh factor can be positive in heterozygous state and also in homozygous state. So, there can be possibility of being both Rh positive and Rh negative. The blood group can be both O positive or O negative.

Can two O positives make a negative?

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.


Compatible blood transfusions



What blood type do 2 O positives make?

Most of this is pretty straightforward. Two O's make O blood type and an A and a B make AB.

What do two O+ parents make?

A child with type O blood can have parents with type A, type B, or type O blood, but not type AB. Conversely, if two parents both have type O blood, all their children will have type O blood.

Can two O positive parents have a baby?

Theoretically yes, but it would be extremely rare.

Two O parents will get an O child nearly all of the time. But as with anything in biology, there are occasional exceptions to this rule. New mutations -- or changes in the DNA -- are theoretically one way these kinds of uncommon scenarios can happen.


What 2 blood types are not compatible for pregnancy?

Rh incompatibility occurs when a mother has Rh-negative blood and the baby has Rh-positive blood.
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A-B-O incompatibility occurs when:
  • the mother is type O and the baby is B, A, or AB.
  • the mother is type A and their baby is B or AB.
  • the mother is type B and their baby is A or AB.


Can O+ and O+ have an A+ child?

Each parent gives one of their two ABO alleles to the child (3). Mother with AB blood type can either pass the A or B allele to the baby. Likewise, a father with O blood type can only pass O allele to the baby. If both parents belong to the blood group O, the child will also belong to the O blood group.

What blood types make an A+ baby?

If your blood is A positive (A+), it means that your blood contains type-A antigens with the presence of a protein called the rhesus (Rh) factor.
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If you have type A blood, your parents had one of the following possible combinations of blood types:
  • AB and AB.
  • AB and B.
  • AB and A.
  • AB and O.
  • A and B.
  • A and A.
  • O and A.


What happens if both parents have O blood type?

The ABO Blood Types

A child with type O blood can have parents with type A, type B, or type O blood, but not type AB. Conversely, if two parents both have type O blood, all their children will have type O blood.

What are the 3 rarest blood types?

The rarest blood types are:
  • B negative(B -ve), which is found in 1.5 percent of the total population.
  • AB negative(AB -ve), which is found in 0.6 percent of the total population.
  • AB positive(AB +ve), which is found in 3.4 percent of the total population.


Is O+ a rare blood type?

38% of the population has O positive blood, making it the most common blood type. O positive red blood cells are not universally compatible to all types, but they are compatible to any red blood cells that are positive (A+, B+, O+, AB+).


Do babies always have the father's blood type?

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. In other words, most likely none of their kids would share either parent's blood type.

Which parent determines the blood type of the child?

The blood type of a child is determined by both of the parents. Each parent donates an allele for the ABO blood group. The A and B blood alleles are dominant while the O is recessive, meaning that the O will not be expressed when dominant genes are present.

What is the rarest blood type?

What's the rarest blood type? AB negative is the rarest of the eight main blood types - just 1% of our donors have it. Despite being rare, demand for AB negative blood is low and we don't struggle to find donors with AB negative blood. However, some blood types are both rare and in demand.


Do siblings have same blood type?

Brothers and sisters don't always share the same blood type. The genotype of both parents plays a role in defining the blood type. For instance, children of parents with the genotypes AO and BO may have the blood types A, B, AB, or O. Thus, siblings do not necessarily have the same blood type.

Can two negative blood type parents have a positive baby?

The answer to this really important question is yes. The reason is that people who test negative for Rh aren't always Rh-.

How rare is O negative blood?

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.


What happens if RhoGAM is not given?

Risks of the RhoGAM shot — and not getting it

In fact, 1 Rh negative pregnant woman in 5 will become sensitive to the Rh positive factor if she doesn't receive RhoGAM. That means, that her baby can be born with one or more of the following things: anemia, a lack of healthy red blood cells. heart failure.

What is the golden blood type?

One of the world's rarest blood types is one named Rh-null. This blood type is distinct from Rh negative since it has none of the Rh antigens at all. There are less than 50 people who have this blood type. It is sometimes called “golden blood.”

Does O positive blood affect pregnancy?

Sometimes an incompatibility may happen when the mother is blood type O and the baby is either A or B. This can affect the newborn baby, who may need treatment after birth.


Can O positive and O negative marry each other?

Blood type has no effect on your ability to have and maintain a happy, healthy marriage.