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O is the most recessive blood type. And RH- negative is recessive. There are a limited number of Blood Type Combinations. AA, AO, BB, BO, AB, OO. Blood Type can be determined with some certainty by using a Pundit Square.
EXAMPLE
AO x OO would result in First Filial Progeny of 50% AO and 50% OO.
or
AA x BO would result in FIrst Filial Progeny of 50% AO and 50% AB.
Wiki User
∙ 10y ago
Wiki User
∙ 15y agoBlood type doesn't fall into the category of dominant/recessive genes exactly; rather it combines this with the properties of incomplete dominance. Ignoring the Rh factor, there are 3 alleles for blood type, I^a,I^b, and i. You will be type A if you have I^a I^a or I^a i and type B if you have I^b I^b or I^b i. You can also get type AB by having the combination I^a I^b or be type O if you have i i. If you need to use dominant/recessive, you can say the A and B allele are dominant over the O allele and codominant with one another.
Wiki User
∙ 14y agoWell the opinion actually differs....according to some doctors it's dominant, according to others it's recessive.
Wiki User
∙ 12y agoThe recessive allele for blood group is the O allele. The recessive allele for Rh factor is the negative allele. So the blood type O negative is the most recessive blood type.
Wiki User
∙ 14y agoBlood type "O" is the most common blood type.
Wiki User
∙ 9y agoBlood type O is recessive. You can only have blood type O if you are homozygous for the trait.
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O
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How could 2 parents with blood type A and B have a child with the blood type of O?
both parents carried the recessive gene for type O blood. the baby then inherited 2 recessive genes and received type O blood. the reason the parents didn't have type O blood is because they carried genes that were more dominant.
Blood type in humans is determined by a single gene that has multiple alleles?
Each person has two alleles for their blood type, one dominant and one recessive. Except for type AB blood where the alleles are co-dominant. The allele for O blood is always recessive when paired with either an A or B allele.
Is type O blood a recessive genetic disorder?
No surprisingly AB is not recursive at all. It is actually dominant. However it is rare. The most common blood type is O although is recessive. They believe that people with O blood type had a greater chance of surviving the black plague in the middle ages and that is why so many people have type O blood.
Can 2 type o blood types have a blood type a child?
Parents of blood type O can only have children with blood type O. Because type O is recessive, you know that the parents are homozygous O.
In humans blood type inheritance is an example of?
The answer to your question is incomplete dominance sweety. ^u^ Heehee! Hope this helps!
Can two a type parents have a O type child?
Yes, they can. If they are both A dominant O recessive, their children can receive the recessive O from each of them and show as O type blood.
A person with the alleles ii has what blood type?
Which statement describes the blood type of a person with the alleles IAi? It is type AB because I and i are codominant. It is type AB because A and i are codominant. It is type A because i is dominant and A is recessive. It is type A because A is dominant and i is recessive.
Is type o blood a type of recessive genetic disorder?
Nope... Its just another type of blood.. its the recessive one...."Universal Donner "!
Can a child with blood type O have a parent with AB blood type explain?
No. A and B are dominant blood types and O is recessive. A parent with blood type AB can only donate a dominant A or dominant B. A child with blood type O would need to come from parents with one of the following combinations: A-A, A-B, A-O, B-O, O-O
How could 2 parents with blood type A and B have a child with the blood type of O?
both parents carried the recessive gene for type O blood. the baby then inherited 2 recessive genes and received type O blood. the reason the parents didn't have type O blood is because they carried genes that were more dominant.
What blood type would a child have if the father is A plus and the mother is O plus?
The child would have A plus blood type since A blood type is a dominant trait while O blood type is a recessive trait
Can a parent with o plus and the other parent with a o plus have child with a o?
No, the blood types a and b are dominant alleles and would mask the recessive o blood type.
Mom has a positive blood type dad has b negativeblood type can it produce a child with o positive blood type?
Since O blood is recessive and B is dominant, this scenario would be possible
Can a type A mother and AB father produce a child with O negative?
Its a possibility. Although the parents have to both be heterozygous with the type O blood. Because type O blood is recessive while type A and type B are dominant.
If you have o positive blood and your sister has b positive do you have the same parents?
It depends on your parent's blood type and dominant as well as recessive genes.
Can a parent with ab plus and the other parent with o plus have a child with o plus?
No, the blood types a and b are dominant alleles and would mask the recessive o blood type.
If I am A negative and my Wife is B negative what will our offsprings' blood type be?
It depends on what recessive gene you and your wife carry. Your children could theoretically have all of the types, A, B, AB, or O. As a type A, your recessive gene could be A or O. It could not be B because that would express and your blood type would be AB. Your wife could have the recessive genes B or O. She could not have A. So basically, your children have a 25% chance for any of the blood types.
