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If a mom was blood type O and a dad was blood type O how would it make a child blood type A?
Wiki User
∙ 13y ago
There are basically three genes involved in the ABO blood typing: A, B, and O. The genes for A and B will always be expressed if they are present, but O is recessive, so in order for someone to have type O blood, the only two genes they can have is O (one from mom and one from dad).
It is biologically impossible for your parents to both have type O blood and you have type A blood. I wish I could tell you otherwise but I cannot. I suggest you have a heart to heart with your parents if they have never mentioned adoption or the like.
Now, To the poster that said that he has O neg but his parents are not type O, that is not really surprising. All this means is that your parents both have at least one gene for type O blood and you happened to get the two recessive O genes (this is a 1 out of 4 possibility...so if you have siblings, they have a higher likelihood of not having type O blood).
I'm type AB, one sister is type O, and the other sister is type B. Because of this, I know that my mother's genotype (the genes involved in causing her blood type) is AO (she has type A blood) and my father's genotype is BO (he has type B blood). Because of this match up, it is a rare situation where their offspring had a 25% chance of being A, B, AB, or O. As it stands, they had 3 kids and 3 different blood types.
Wiki User
∙ 15y ago
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What type of blood does a child make is one parent blood type is O positive a the other is a positive?
The child could be A+ or O+.
If a woman whose blood type is O- gives birth to a child whose blood type is A- what blood type's would the father need to have?
The father's blood type would have to be A or AB, and most likely negative.
If a mother has O negative blood and her child has A positive blood what type of blood should the father have?
The blood would be A+, the child's is always pretty much what the Father's is.
Do your children have to have same blood as you?
No - children do not have to have the same blood type as the parents. For example, if one parent has blood type A and the other has blood type AB, the child might have A, B or AB blood types. (For the child to have B, the parent with blood type A would need to be heterozygous, Ao)
What is blood alleles - please explain in easy language and with example?
Blood alleles are the genes that determine what kinds of proteins will be present on the surface of red blood cells, which are called antigens. These alleles determine blood type - A, B, AB or O. There are actually only two proteins that are present in human blood, A and B. Type O blood is an absence of either A or B proteins. Therefore, blood type is determined by the genes you inherit from your parents. All humans carry two alleles. For example, one person may have one allele for A type blood and another allele for no protein (O type). This person will have type A blood. Another person may have one allele for B type blood and another allele for no protein (type O blood) and would be classified as having type B blood. If these two people were to have children together, they would be able to produce children with all four blood types. This is because each parent would contribute one allele to the child. If the child received the A from parent 1 and the B from parent 2, the child would have type AB blood - both the A and the B proteins present on the child's red blood cells. If the child received the A from parent 1 and the O from parent 2, the child would have type A blood. If the child received the O from parent 1 and the B from parent 2, the child would have type B blood. If the child received the O from parent 1 and the O from parent 2, the child would have type O blood - no proteins present on the child's red blood cells.
Can blood type o and b make a child with a?
blood type o
What blood group would a child have if father is a and mother is o?
The child can have either A-type blood or O-type blood.
If father has blood type B positive and mother has blood type AB positive what would be the blood type of the child?
the child's blood group will be AB-.
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
What type of blood does a child make is one parent blood type is O positive a the other is a positive?
The child could be A+ or O+.
What would be a child's blood type of the mother is A and father is O blood type?
Your blood type would either most likely be A, AO or O.
Could a child with type B blood have parents that are both type A blood?
Only if it was adopted...the only options for that child's blood type would be A or O if the biological parents are both Type A.
What will a child's blood type be if parent's blood types are O negative and O negative?
Obviously, the child's blood type would be an O negative as well.
Can a Mother and father have type o blood and child be a b?
Yes, It is possible. But most of the time the child would have the same type of blood.
What would your parents blood types have to be to have a child with a plus blood type?
A+ and A- A+ and O-
If the mother has B positive blood and the father has O positive what would the child's blood type be?
The child's blood type could be B positive or O positive.
What blood type would be produced from a male with type A and a female with type O?
The child would have A or O.
