Why i have different blood group than of my parents?

Question

I have B+ blood group ,where as my mother have O+ and my father have AB+ blood.

Answer 1

BASICS:
1)Your blood group is determined by the combination of genes (for blood group) from your father and your mother.
2)In a combination of dominant and recessive genes, dominant genes express themselves.
EXPLANATION:
Blood group is determined by three different genes A, B and 'i'. Out of these A and B genes are both dominant and 'i' is recessive. A person can have only two of these three genes, one from father and one from mother.
Since A is dominant so combination of A and 'i' will give rise to 'A' blood group. Similarly, Combination of B and 'i' will result in 'B' blood group. But, if both A and B genes combine 'AB' blood group results as both genes are dominant. If both genes are 'i' we say that the blood group is 'O'.
In your case, your father is AB, so he has both A and B genes to pass on to you. Your mother is O, so she has only 'i' genes to pass on. You have recieved B gene from your father and 'i' from ur mother and consequently ur Blood group is B. If u would have recieved A gene from your father you would have been A.
The Rh factor i.e. +ve and -ve is also similarly determined with genes for +ve being dominant and for -ve being recessive. So, for u to be +ve, its sufficient that you recieve only one +ve gene (Either from father or mother) but for u to be -ve you should recieve -ve gene from both of your parents.

Answer 2

It doesn't really make a difference. You being their child has nothing to do with blood..it's genetics..but the reason you may have a different blood type is because they both have different blood types that combined to make you..for example say your mom was an apple and your dad was an orange. If you mix those two you don't get either. It's not uncommon for kids to have different blood types than your parents it happens all the time where parents can't donate organs to their child with a terminal illness because they don't have the same blood type.

Answer 3

Normally, children do have the blood group of either of the parents. But O+ is the universal group, hence, it might be possible to have a different group. BUT don't ever think that your mother betrayed your father...

Answer 4

No two people are born with the same blood type;it's not to say that your aren't your parents but parents and children don't always have the exact same blood type.I have A- blood,my mother has O+blood and my brother has A+blood.Blood types are not a noticable difference.

Answer 5

Certain combinations of blood types will produce a child with a different blood type. You Dad has rare blood - AB+ is highly unusual. You might try to find out what blood types your grandparents had - yours might be from their recessive genes.

Answer 6

You got the B+ blood from your father, because he is a carrier for the gene for that blood type.

Answer 7

Certian things skip generations. Your parents may not have the same blood type as you but someone down the line does.

Answer 8

every person's blood group is determined geneticaly.there are mainly two blood groupin system ABO grouping and Rh grouping.acc to ABO grouping there are A,B,AB and O groups.Rh grouping its Rh-positive and Rh-negative.'A' group is determined by genes 'Ia Ia' or 'Ia Io'.where 'Ia' is dominant gene and 'Io' is recesive.simillarly for B its 'Ib Ib' or 'Ib Io'.for 'AB' group its 'Ia Ib'.for 'O' its only 'Io Io'.your mother has O group means she has 'Io Io' genes and your father has 'Ia Ib' genes.and u have got 'Ib' gene from ur father and 'Io' gene from your mother.so u have 'Ib Io' that is B blood group.like that only Rh grouping if u have Rh gene u are Rh positive and if u dont have then u r Rh negative.lastly your parents can never have a child who is O blood group.

Answer 9

Your dad would would desire to be heterozygous for blood form A. His genotype would be AiOi via fact form A blood form is dominant to form O so as a fashion to offer a new child with the recessive blood form the make certain expressing the dominant blood form would would desire to be a provider of the allele for the recessive blood form. you will would desire to be homozygous for the O blood form (OiOi) like your mom. Now, to make certain that your Rh ingredient to be damaging like your father your mom would would desire to be heterozygous (+-) and your father homozygous damaging (- -) via fact the valuable ingredient is dominant to the damaging ingredient and the only thank you to have the damaging ingredient is for it to be homozygous damaging.

Answer 10

it is proved now that it is not necessary that you have the same blood group of one of your parents