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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
∙ 15y 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?
If both parents are A negative and B negative, their offspring could be A negative or B negative. Each parent passes on one blood type allele to their child, so the child may inherit the A allele from one parent and the B allele from the other, resulting in type AB.
