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Can parents both blood type B positive have a child with O negative blood type?
Yes parents who are both B blood group can have a child with O negative. This is because B blood group only requires one parent gene to be B to have B blood group - they may also have one O gene. People have two blood group genes, one from both parents. B gene is "dominant" as is A gene. O gene is "recessive". AB blood group means a person has one A gene and one B gene B blood group means a person has either one B gene and one O gene or two B genes A blood group means that a person has either one A gene and one O gene or two A genes O blood group means that a person has two O genes Rhesus positive or negative is similar - positive is dominant and therefore a person with one positive gene and one negative will be rhesus positive. A person who is rhesus negative has both negative genes, and received one negative gene from both parents, both who may be rhesus positive ( with one positive and one negative gene each). Importance of O negative blood - O negative blood group is called the "universal donor" because the blood is least likely to cause transfusion reactions so is safest to use in an emergency before blood groups can be identified and matched.
If both parents are A+ can a child be B+?
If both parents are A+ can a child be B+?
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Answer . No. It is only possible for them to have O+ and (if they carry the recessive gene) O-
Answer Two parents who have O positive blood could easily have a child who is O negative. In fact, most children who are O negative have parents who are positive, since the +…- combination is so much more common than the -- combination. Genetics can be so confusing! I can easily see how after much research the issue would still appear murky. The modern science of genetics had its start in 1866 when an Austrian monk named Gregor Mendel provided a simple yet powerful description of how traits are passed on from one generation to another. Mendel's work was unappreciated until 1900 -- more than fifteen years after his death. In his initial formulation, he described how sexual beings get two genes for each trait, one from each parent. The trait expressed, or visible, is a result of the interplay between these two genes. Specifically, he recognized that some genes are dominant and some are recessive. If you have one copy of a dominant gene you will express that trait, regardless of the other gene. In order to express a recessive trait you must have two recessive genes. Mendel's first experiments, though simple, were quite profound. He worked with peas, which had easily distinguishable traits, such as green versus yellow seeds. Each pea has two seed-color genes, one from each parent. The peas with two yellow genes were yellow. Those with a yellow and a green gene were also yellow; only those with two green genes turned out to be to green. Thus yellow was dominant over the recessive green gene. The situation with human blood genetics is far more complex, since at each point there are multiple possible characteristics. Nevertheless, the genetics of human blood is far better understood than that of any other human tissue. First, let's look at the ABO blood types. Each person receives an A, B, or O gene from each parent. In this system, the A and B genes are co-dominant and the O gene is recessive. Thus, a person whose genetic type is either AA or AO will have blood type A, those with genetic type BB or BO will have blood type B, and only those genetic type OO will have blood type O. This means that a child with type O blood could have parents with type A, type B, or type O blood (but not with type AB). Conversely, if two parents both have type O blood, all their children will have type O blood. Another medically important blood type is described in the Rh system. These genes were first discovered in the rhesus monkey, hence the designation Rh. The Rh system is actually far more complex than the ABO system in that there are 35 different possibilities that one could inherit from each parent. These, however, are roughly grouped into positive and negative types. In this system the positive are dominant over the negative. If your genetic type is ++ or +-, your blood type will be Rh positive. Only if your genetic type is -- will you be Rh negative. This means that if both parents have Rh+ blood with the +- genes, they could have children who are ++, +-, or --. In other words, their children could be either Rh positive or Rh negative. Children who are Rh negative can have parents who are either Rh positive or Rh negative. Two parents who have O positive blood could easily have a child who is O negative. In fact, most children who are O negative have parents who are positive, since the +- combination is so much more common than the -- combination. As it turns out, there are more than a dozen complete blood group systems other than the ABO system and the Rh system. This makes great precision possible in looking at inheritance and family trees. There is no reason, based on your blood type, to suspect that your parents might not really be your parents. If questions linger for other reasons, specific tests are available through blood banks that can settle the issue. Given the billions of unique people on this planet, the power and precision of genetic testing are amazing.
No, O parents can only have O children
Yes! Parents have two genes for pos/neg blood type, and only one of them needs to be positive for the parent to have positive blood type. Most positive-blooded people have on…e positive gene and one negative gene. If both positive parents pass on their negative gene, they can have a child with a negative blood type.
yes its likely that the child can be a negative even though that both parents r a positive.
Absolutely not. Type O is really Type "Zero", meaning the parents don't have either the A or the B factor. If they don't have it in the first place, they can't give it to thei…r child.. Note that the reverse can happen -- Type A and type B parents can have a type O child. It just means that they have the type A or B proteins, but didn't pass it along to their child.
yes, if both parents have the genotype AO blood with means their blood type is A then there is a 25% chance for them to have a child with type O blood
If both parents are O negative than the child will also be O negative. This is a special case with O negative, the same logic doesn't apply to other blood groups.
It must have one of the true parents blood types.
no, the o blood type is recessive, so the mom must have either cheated, or been given the wrong blood during a blood transfusion. (doctors don't give transfusions to pregnant …women, because it could be bad for the baby.)
i think so because in math class two negatives equal a positive.
Yes. If mother was A/O RH pos (D d) and Father is A/O RH neg (d d), then they could have a O positive child. One only needs one big D to express the RH positive gene.
We are looking for the possible blood types of a baby. Parental information: . Mother type B pos -- can be BB or BO with Rh (++) or (+-) . Father type B pos -- can be BB or …BO with Rh (++) or (+-) Baby receives one gene from each parent: . Baby is type BB (++)/(+-) = Type B pos . Baby is type BB (--) = Type B neg . Baby is type BO (++)/(+-) = Type B pos . Baby is type BO (--) = Type B neg . Baby is type OO (++)/(+-) = Type O pos . Baby is type OO (--) = Type O neg YES. These parents can have a child that is Type B negative.
We are looking for the possible blood types of a baby. Parental information: . Mother type B -- can be BB or BO therefore can contribute B orO . Father type B -- can be BB …or BO therefore can contribute B orO Baby recieves one gene from each parent: . Baby is type BB: recieves an B from each parent . Baby is type BO: recieves an B from one parent and O from theother . Baby is type OO: recieves an O from eachparent YES, the baby of two Type B parents can be Type O. As long as oneparent is Rh positive, there is the good chance that the baby willbe Rh positive as well.
Blood type B or Blood type O