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Learn About Egg Donor Blood Typing

Posted on February 21, 2016

Don’t Plan On Disclosing You Worked With An Egg Donor?

Learn About Egg Donor Blood Typing.

To some intended parents that decide that they prefer not to disclose that an egg donor was used for their fertility journey it’s important to match with an egg donor with the intended mothers blood type. However, it’s important to remember that children do not always inherit the same exact blood type as their biological parents.  For example, a couple with blood types of A and B could have an offspring with any of the four blood types: O,A,B, or AB. Also remember that each parent carries two “alleles” for both blood group and Rh factor, of which only one is passed on to ones offspring.

Keep in mind that if you choose a donor without regard to blood type, you greatly increase your donor choices.

Mother Blood Type Father Blood Type Possible Donor Blood Type Child  Possible Blood Type With Parents Child Possible Blood Type With Donor Child Impossible Blood Type
O O O O O A, B, AB
O A O, A O, A O, A B, AB
O B O, B O, B O, B A, AB
O AB A, B A, B A, B O, AB
A A O, A O, A O, A AB, B
A B O, A, B, AB O, A, B, AB O, A, B, AB NONE
A AB A, B, AB A, B, AB A, B, AB  O
B B O, B O, B O, B A, AB
B AB O, A, B, AB A, B, AB A, B, AB O
AB AB O, A, B, AB A, B, AB A, B, AB O

Blood type is inherited from both parents. Our blood type has 2 alleles-1 from Mom and 1 from Dad which determines what blood type we have. O is the recessive inherited allele and A and B are the dominant alleles.  Therefore, you get an O from one parent and an A from the other you will be blood type A.

Examples:

If you are blood type A you can be: AA or AO

If you are B-you can have BB or BO

If you are AB- you have an A from one parent and a B from another

If you are O- you got O from both parents

The reason why parents who have A and B blood type can have a child with blood type O is because if the parents are AO or BO they have a 25% chance of having a child who will inherit both the O alleles from both parents.

courtesy of donor concierge 

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