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A parent with type O blood marries a type AB what would be their phenotypes?
Wiki User
∙ 14y ago
Their children's phenotype could be either A or B.
Wiki User
∙ 14y ago
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Can two parents with O positive blood have a child with AB negative blood?
No. O is recessive. The parents would have to have A and B phenotypes in order for their child to have AB- blood.
Can A homozygous A blood marries a woman with AB blood what blood type will the children have?
Do a punnet square.I am really bad at them, otherwise I would be more helpful. Got a C in biology.
If one parent has A positive blood and the other had A positive blood what type will the baby have?
The blood type would be A positive.
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.
Can an AB blood and B blood parent can have an A plus blood baby?
Yes - AB Parent has genotype IA IB . If the parent with B blood has the genotype IBi, which is entirely possible, then there is a chance that the baby would be IAi, and would have type A blood. Plus/minus has to do with the RH factor in blood, so you can't tell from the information given whether the baby could be "plus". If one of the parents is RH+, the baby could be as well.
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)
Can parents both blood type O have a child with A negative blood?
No, At least one parent would have to be an A (or an AB) for a child to have group A blood.
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 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 someone in a family is a purebred and he marries someone with a recessive trait will his children still be considered purebreds?
yes the children would be cause they have purebred blood in them.....
How do you deterime phenotypes?
phenotypes are decided by the alleles for that particular characteristic, by a dominant or two recessive alleles. For example, cystic fibrosis has a recessive allele so the phenotype of cystic fibrosis would only appear if there were two of the recessive allele, one from each parent, were present. A heterozygous carrier of the cystic fibrosis allele would show the phenotype of not having cystic fibrosis. So to determine the phenotype simply find out which allele is dominant and find what alleles each parent has the the probability of each phenotype can be calculated
Why isn't it possible to have more genotypes than phenotypes?
I think you have the question backwards, "Why isn't it possible to have more phenotypes than genotypes?" There are always more or an equal number of genotypes relative to phenotypes. The phenotype for a simple dominant/recessive interaction (for example) T for tall and t for short where TT is tall, Tt is tall and tt is short has three genotypes and two phenotypes. If T and t are co-dominant then TT would be tall, Tt would be intermediate and tt would be short. (Three phenotypes and three genotypes.)
