Probability question - blood type?
All human blood can be "ABO-typed" as one of O, A, B, or AB, but the distribution of the types varies a bit among groups of people. Here is the distribution of blood types for a randomly chosen person in the United States. Blood type O A B AB U.S. probability 0.44 0.41 0.10 0.05 Choose a married couple at random. It is reasonable to assume that the blood types of husband and wife are independent and follow this distribution. What is the probability that one of the couple has type A blood and the other has type B?
Blood Types! A, B, and, O?
Mary and John are both heterozygous for their blood type. Therefore if the two recessive genes come together which will occur 25% of the time they will have a Blood Type O offspring. They also can have a 25% chance of having a child with AB blood type along with the Type A of James and Type B of Pete. The genotypes of the parents would be IA i X IB i
Blood type question (A, O, B, AB)?
The father would have to have both the positive allele and the allele coding for A blood type therefore Mr. X could have either A positive blood type or AB positive blood type.
Blood type questions?
You'll have to figure this out on your own, but here's some info for you. According to the ABO system, which has been in use for many years, there are four blood types: A, B, AB and O. To understand how blood type is inherited, it helps to think of the four categories as groups. They represent the presence or absence of two antigens, or proteins, in the blood, A and B. Blood type O contains neither antigen. Each person inherits two genes for blood type, one from each parent. The child’s blood type is determined by which two blood type genes (alleles) were inherited and whether they are dominant or recessive. Types A and B are dominant, while O is recessive. This means that if a child inherits an A gene and an O gene, that child will have type A blood. It is the same story with type B. When a child inherits an A and a B allele, both are dominant, and the child’s blood type will be AB, containing both antigens. The only way to get type O blood is to inherit two type O alleles. To have type B blood, the mother’s genetic combination is either BB or BO. There’s only one scenario in which a child with B and AB parents could wind up with type A blood. If the child got the O from the mother and the A from the father, the result would be type A. That’s not unlikely, since O is the most common blood type, followed by A. However, if the mother’s second allele is B, then the only gene she can pass down is B. In that situation, the blood type would be B if the child got a B allele from the father, and AB if the allele from the father was type A. The plus (+) or minus (-) signs indicate the presence or absence of Rh factor in the blood. It is important in terms of childbirth, but unrelated to the ABO system of blood groups.
A person can have one of four blood types: A, B, AB, or O.?
No---some blood types are more common than others--- so since the proportions are not equal, it will not be 1/4.
A person lost 50% of his Type A blood, there is only Type O blood available for transfusion. Can the transfusion with 3L of Type O blood group cause any problems?
Yes, it can cause problems and yes, if the patient couldn’t survive otherwise it will be transfused anyway.A common myth is that the ABO and Rh (positive and negative) is all there is to blood tranfusion. We know of and test for over fifty different factors with known immune responses and try to match each donor blood to each recipient to the maximum possible extent and keep an updated list of all recipients of blood and which points of incompatibility were already crossed. ABO and Rh factors are just the most potent of them, the kind that easily cause rapid haemolysis to the point of killing the recipient if they’re unmatched.Many of those parameters aren’t problematic the first time you transfuse them, but can and do cause subsequent problems. Some are problematic to pregnant women, the Kell factor (positive or negative) is sometimes spelled out on blood bags nowadays for that reason, in addition to ABO and Rh. If a pregnant Kell negative woman is transfused with a kell positive blood she is likely to abort the fetus and suffer problems in later pregnancies, which is why women with unknown kell status always get kell negative blood and so on. As I said we watch for over fifty factors, that’s why tranfusion medicine is such big business.Blood bags with ABO, Rh and Kell factor (the big K to the right) denoted on them.Tranfusion needs to be thought of as a form of transplantation. We all know just how matched the donor and the recipient of an organ have to be and blood is not completely different. It is different in that it will only be in the body for a month or so and that the cells in question don’t have nearly as many markers on them - they don’t need as many, red blood cells can’t get cancerous or infected with viruses - which is why we can afford far lesser matches than with other tissues. But it’s still a transplantation, with the same logic behind it and the same risks involved.Anyway, back to the question - it is unlikely but possible that the type O Rh negative blood will kill the person in question, but we’ll transfuse it anyway. Why? because the person will die if we don’t and this is his only chance.
As I have the AB+ blood type and my husband has the AB blood type, is there any problem to conceive a baby?
Thanks for the question.You can have any blood group and your husband with same or other blood group can conceive a baby without any problems/complications.The only thing one should note of wife is having Rh -ve blood group and husband Rh+ve, then the lady needs to be administered with Rhogam injection in 1st pregnancy to avoid complication known as Erythroblastosis fetalis, also called hemolytic disease of the newborn.Since you’re having Rh+ve blood group, you just need to plan your baby shower…Good luckFeel free to contact me for any other doubts/clarifications.
If a blood type O and a blood type O can only give birth to another blood type O, won't all people in the world have blood type O?
O isn't really a trait.To start things off, I would point out that one of the statements in your question is wrong. AB people cannot, in fact, have an O kid.Next, I'll explain to you how blood groups actually work. You blood group is determined by two factors, one each inherited from each of your parents. They may give you one factor each, or neither may give you anything. Let us call these factor A and factor B.1. O essentially stands for zero, ie you got neither factor A nor factor B.2. A means one of your parents gave you factor A while the other gave you A or nothing.3. B means one of your parents gave you factor B while the other gave you B or nothing.4. AB means one parent gave you A and the other B.In other words, blood group O can be represented as OO, a as AA or AO, B as BB or BO, and AB can only ever be AB.Now you can see blood group O will happen only if OO mates with OO, AO or BO, or when AO and BO mate. You should be able to work out the other inheritance patterns by yourself now.As for the maths of it, it's actually rather simple. Look at ishita Chakraborty's answer, and calculate carefully. There are a possible total of 40 outcomes - blood group A and B 12 times, O 9 times and AB 7. You can reach the probability of each blood group now.Now reality does not reflect these numbers. That is because these numbers have far too many external factors influencing them in real life, but surely the numbers tell you that your fundamental premise is mistaken.P.S. I apologize for such a text heavy answer, but for some reason I'm unable to insert images through the quora app.
If a father has an O blood type and a mother has an AB blood type, what will be the child’s blood type?
It would be either A or B blood group.As the father has O blood group( recessive and is expressed only if present in homozygous condition) so possible alleles are O and O.The mother has AB blood group, which means the possible alleles would be A and B.Thus, the child may either have AO gene pair (2 alleles make one gene pair) or BO gene pair. This implies that either the child would have A or B blood group as I mentioned earlier too that O is recessive and is expressed only in homozygous condition. And here the resultant being heterozygous i.e., AO and BO, O would not be expressed.Thank you
If one parent is blood type "AB" can they have a child with type "O"?
Strictly speaking, it’s impossible. But there are also extremely rare false appearances, I will explain it.First, I will explain the ABO blood type system in a straightforward way.we can image every child consist of two parts from parents respectively. Half of our blood type comes from our father, the other half comes from our mother. So, each blood type should be signed as a binary system.O type → OOA type → AOB type → BOAB type → ABNow, I could answer the question “If one parent is blood type "AB" can they have a child with type "O" ?”If one parent is type “AB”，the other one is type “O”, the possible blood type of their children is shown in the following picture.according to this simple method, others possibility can be deduced if the other parent is type A/B/AB.Finally, there is one kind very special case, extremely rare false appearance, named fake-O type(Hh/Bombay antigen system). But this kind fake-O type is not real O type, can be detected by modern blood test technology.BTW, there are only about 30 fake-O type or Bombay type cases in China, and the quantity is much more in India, about 1 in 10,000.