My dad blood type is O+, my mum is B+, my two other siblings are also O+. How come mine is A+?

Question

but i do look exactly like my young sis, (she's just 6, don noe her blood type yet) n when i told them about its impossible that i have this blood type, they just said that probably the nurse who check my blood or my mum's blood could have made a mistake. what should i do now??

Answer 1

it's all in the genes. some people who's parents both have + blood end up having - blood. it all depends on what you get.

Answer 2

One achievable answer is "confident". To be form O, your mom's 2 genes for blood form could be OO. it relatively is the only combination which will bring about form O blood. Now, form A could be 2 distinctive gene varieties. AO and AA. The A gene is dominat, so it gets expressed. (remember that "O" in basic terms skill "no longer A, no longer B". form B is the comparable, BO or BB. Now, the subsequent answer is extra tricky and is actual "No". Your siblings are form A and sweetness O and you're form B. That combination interior the comparable kinfolk might tend to point that there are 2 individuals different than your mum. in the experience that your dad have been form B, he ought to no longer father your siblings that are form A, yet he could make a contribution an O gene for the form O siblings. in the experience that your siblings father replaced into form A, he ought to no longer make a contribution the form B gene to you, yet could make a contribution an O gene for the siblings. in the experience that your father have been form AB, then he could make a contribution an A gene for the form A siblings or a sort B gene on your blood form, yet ought to no longer make a contribution an O gene on your siblings. right here's a table: Father AB, Mum OO little ones: AO, AO, BO, BO See how no form O (OO) little ones could be achievable? Father AO, Mum OO little ones: AO, AO, OO, OO See how no form B is achievable? in case you talk your finished kinfolk's blood historical past and which you all have a sort O mum, the comparable guy can't father each and all the baby's blood varieties you describe.

Answer 3

I agree with the person who said to have a talk with your parents. A doctor once told me that basically blood tests aren't always reliable- which is interesting because it's important information for blood transfusions. I know that if you do an experiment in biology class about blood type where everyone figures their own type, it's not very accurate!

Answer 4

You cannot be an A if either of your parent was not an A or AB.

You need to conclude the accuracy of their types. If they are accurate, then you cannot be the natural offspring of one of them or possibly both.

Answer 5

because either A) you're adopted (and your parents didn't tell you)
or B) you're dad is not you're dad, and you're mom cheated on him. Either way, it is genetically impossible for your dad to be your dad, and therefore it may also be possible that your mum isn't your mum, either. sorry to break this news to you, hopefully you are a grown adult.....

Answer 6

if u or your mom have a bone narrow transplant, may be it is possible. Else do a DNA test with your mum and dad.

Answer 7

Maybe you should consider having a nice talk with your mom and dad. Just think, If you are adopted just thank god someone adopted you.

Answer 8

Most likely your adopted, or its a genetic fluke.

Answer 9

Ask the mailman! lol

Answer 10

oh!!!!! its very rare