Curiosities of pregnancy: How the Baby Baby is inherited 111 comments
Did you know that two parents with positive RH can have a negative Rh baby? And what a father A and a mother B can have a son 0?The laws of genetic.I tell you how the blood group is inherited.
I am not a doctor, but I have documented a lot on this subject because it catches my attention and I have written on more than one occasion about it, advised by genetics experts.However, if there was an incorrect data, I beg you to let me know to check it and if you correct it if necessary.
How the blood group is inherited: 50% of the father and 50% of the mother
Actually, the blood group is not only A or B but AA or A0 or BB or B0.
The transmission of the different blood groups follows the laws of genetics: half of the genetic information comes as a father and the other half of the mother.
Therefore, the blood group or, A or B or AB of each person is actually formed by two letters (called alleles).
Namely:
ALLELOS A AND B ARE DOMINANT AND THE 0 IS RECESTIVE.That is, the recessive allele does not manifest, but, nevertheless, it can be transmitted to the offspring.
Esto hace posible que un progenitor con el grupo A y otro con el grupo B puedan tener un hijo con el grupo 0.In this case, both parents have to have the allele or: one will be A0 and another B0 and the son will inherit the two alleles 0 and will be 00.What is not possible is that two parents with group 0, that is, with alleles 00 and 00, have children with group A, B or AB because they can only convey the 0 allele and the child will be 00
RH Factor: Two parents with positive RH can have a child with negative HR
The same thing happens with the RH Factor: two people with positive RH can have a child with negative HR.
When the two parents are RH +-, the child can inherit the negative (-) of the two and be negative (-)
What can never happen is that two parents with negative HR have a son with positive RH.
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