Is Blood Type O Recessive
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If a child's blood grouping is O, what permutations of blood groups might his parents accept?
Arun, Pithoragarh, India
- If the Mother's blood type is B, and the father'southward blood type is O, and then their child must be either B or O. For example, if both mother and alleged father have type A claret, and so the child can only accept A or O blood. On the other paw, if the mother's blood blazon is A, and the father's is B, the child could be ANY of the four claret types A, B, AB or O so its power to predict paternity is minimal in this example. When both father and mother contribute an A gene, their child has Blazon A claret. In this case, the kid is "pure-bred" for the A gene. The kid tin only laissez passer on an A gene to his offspring. If i parent contributes and A gene and the other contributes an O gene, the kid will take A blood type, only, like his parents, he'll also have both A and O genes that he may pass along to his children. Still, in 1 out of four instances, both parents volition contribute their recessive O cistron to their kid. When that happens, instead of the child expressing the A blood type, he will instead express the O blood blazon. Scientists utilise the term genotype to refer to the combination of mother and begetter genes in the person's make up. AA, AO and OO are the 3 genotypes that may result from the mating of the parents in the example higher up. Scientists use the term phenotype to refer to what gene is really expressed. In the example to a higher place, there are ii phenotypes of Type A blood and Type O blood. The type O blood phenotype can only outcome from ane genotype of OO. But Type A blood tin can consequence from ii different genotypes of AA and AO.
Goteti MVSR Krishna, Tadepalligudem,Andhra Pradesh India
- Possible parents could exist whatsoever of the 3 genotypes. AO (grouptype A) BO (grouptype B) OO (grouptype O)
Paul, Paris France
Is Blood Type O Recessive,
Source: https://www.theguardian.com/notesandqueries/query/0,,-204039,00.html
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