Child Blood Type Calculator

This app let you know your unborn baby’s blood group.This app Child good type calculator can help you discover more about chances of unborn baby blood group.Now select the mother’s and the father’s blood type and you can find out the probable blood group of your child. Also chances can help you get idea of scientific measures.This app is a scientific tool based on medical calculation we can draw probability of Child Blood group type.This is very helpful for a layman to discover your child blood group.This is also a education for students to learn about blood group scientific measures.This app also helps the doctors and all category of people.You don't need to study whole literature just put values and get the solution.We have applied ABO group system calculation in this app.

The gene, ABO, determines this blood group system. The four blood groups – A, B, AB, and O develop when the child inherits one or more of the alleles – A, B or O. The alleles A and B are considered codominant while O is considered to be the silent allele.

In genetics, blood type gene has two alleles, each allele has genotype A, B or O. The A and B are dominant, and O is recessive. So allele A combined with allele O is type A. Similarly, BO is type B, AA is type A, BB is type B, OO is type O, and AB is type AB.

If both parents have type A blood, then the alleles could be AA or AO, thus the allele A frequency is 75%, allele O frequency is 25% for both parents.
So the chance of alleles OO is 25% × 25% = 6.25%,
alleles AA is 75% × 75% = 56.25%,
alleles AO is 75% × 25% = 18.75%,
alleles OA is 25% × 75% = 18.75%.
Since AA, AO and OA are blood type A, and OO is blood type O, thus their child has 6.25% chance to be blood type O and 93.75% chance to be blood type A.

The +/- is called the rhesus factor, with + being dominant, and - being recessive.
So if both parents are -, the kids are always -, otherwise the kids might be + or -.