Children's blood type calculator (This calculator is for your reference only, please use it with caution!)

Blood type genetic basis:

Genetically, the blood group gene has two alleles, each allele type A, B or O, A and B are dominant, and O is recessive. Therefore, the allele A allele Ø binding is also A type, BO is AA is A type, B type, BB is B type, object oriented is O type, AB is AB type.

If both parents have type A blood, then the allele may be AA or AO, so the chance of the allele is 75%, and the allele O chance is 25%, both parents.

So the chance of the OO allele is 25% × 25% = 6.25%,

The allele AA is 75% × 75% = 56.25%,

The allele AO is 75% × 25% = 18.75%,

The OA of the allele is 25% x 75% = 18.75%.

Because AA, AO and OA are type A blood, OO is type O blood, so their children have a 6.25% chance of type O blood, and a 93.75% chance is blood type A.

+/ - is called prothrombin, with dominant, and - for recessive.

So if both parents are - and the children are always - otherwise the child may + or -.

Blood type compatibility----------------------------------------------------

Usage example

Child blood group: A+

A parent's blood type: o+

Blood type of other parents: A / AB+

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