Causes Of Different Blood Types?

Illustration of Causes Of Different Blood Types?
Illustration: Causes Of Different Blood Types? science.org.au

excuse me, I want to ask, I am the 3rd child of 3 siblings, my blood type 2 is my older sister B, and my father is B, while my blood type is O. while for my mother’s blood type it is unknown.

1 Answer:

Hello!
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Blood type consists of blood types A, B, AB and O. To find out a person's blood type is needed blood tests with different antigens. If parents have the same blood type, the possibility of their children have different blood types is still possible. For example in the case you are asking now.
Both blood types A, B, AB and O have variations between genes called alleles. Each blood type will contain 2 types of alleles. From Allele, each person can have a variety of blood types. Alleles can consist of antigen A, antigen B or antigen O or blank.
The following table theory of blood groups based on alleles. Blood types are represented by uppercase letters and alleles are represented by lowercase letters.

Aa + Aa = A
Aa + Ao = A
Ao + Ao = O
Bb + Bb = B
Bb + Bo = B
Bo + Bo = O
ABa / b + ABa / b = A, B or AB
ABa / b + ABo = A only or B only
O + O = O

The information above shows a cross between a blood type and an allele that helps answer your question. If your father has a blood type B, and your blood type is also a blood type B, it is definitely possible that your father's blood type and your mother have an allele o, so crossing the same blood group to have alleles o will result in blood type O. This is what underlies the different blood groups blood between parents and children.
So much information that I can convey, hopefully it helps

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