Blood group 0 have only those people whose both parents are of blood group 0. Blood groups are 4 - A, B, AB and 0. They are determined by 3 alleles - A, B and 0. To determine the blood group each person needs 2 of these 3 alleles - one we inherit from our father and the other from our mother / in body cells each gene is represented by 2 alleles, and in the germ cells - by 1 allele./ If they are added allele A from one parent and allele B from the other parent a child with blood group AB is born. If allele A is added from one parent and allele 0 from the other parent, then allele A suppresses allele 0 and blood group A appears. Similarly, if B and 0 are added, allele B suppresses allele 0 and blood group appears. C. Blood group 0 has only those people whose both parents are of blood group 0. People with blood group A are two types - one has 2 alleles A, the other - 1 allele A and 1 allele 0. People with blood group B are two types - one has 2 alleles B, and the other - 1 allele B and 1 allele 0. Children may have the blood type of one parent, but may not inherit the blood type of either parent. For example, if one parent has blood type 0 and the other has blood type AB, then the children will have either group A or group B. There will be no stepmother to be your real parents. When they are both A, there is no place to come from 0 - the mother has either slept with another man or you have been adopted, this is it. I'm sure that both of your parents with A and you 0 go to the municipality with the adoption registers should write who gave birth to you, but they are unlikely to tell you. I think the adoptions are still kept secret. and the others - 1 allele A and 1 allele 0. People with blood group B are of two types - one has 2 alleles B, and the other - 1 allele B and 1 allele 0. Children can have the blood type of one parent, but can also not to inherit the blood type of either parent. For example, if one parent has blood type 0 and the other has blood type AB, then the children will have either group A or group B. There will be no stepmother to be your real parents. When they are both A, there is no place to come from 0 - the mother has either slept with another man or you have been adopted, this is it. I'm sure that both of your parents with A and you 0 go to the municipality with the adoption registers should write who gave birth to you, but they are unlikely to tell you. I think the adoptions are still kept secret. and the others - 1 allele A and 1 allele 0. People with blood group B are of two types - one has 2 alleles B, and the other - 1 allele B and 1 allele 0. Children can have the blood type of one parent, but can also not to inherit the blood type of either parent. For example, if one parent has blood type 0 and the other has blood type AB, then the children will have either group A or group B. There will be no stepmother to be your real parents. When they are both A, there is no place to come from 0 - the mother has either slept with another man or you have been adopted, this is it. I'm sure that both of your parents with A and you 0 go to the municipality with the adoption registers should write who gave birth to you, but they are unlikely to tell you. I think the adoptions are still kept secret. People with blood group B are of two types - one has 2 alleles B and the other - 1 allele B and 1 allele 0. Children may have the blood type of one parent, but may not inherit the blood group of either parent. For example, if one parent has blood type 0 and the other has blood type AB, then the children will have either group A or group B. There will be no stepmother to be your real parents. When they are both A, there is no place to come from 0 - the mother has either slept with another man or you have been adopted, this is it. I'm sure that both of your parents with A and you 0 go to the municipality with the adoption registers should write who gave birth to you, but they are unlikely to tell you. I think the adoptions are still kept secret. People with blood group B are of two types - one has 2 alleles B and the other - 1 allele B and 1 allele 0. Children may have the blood type of one parent, but may not inherit the blood group of either parent. For example, if one parent has blood type 0 and the other has blood type AB, then the children will be with either group A or group B. There will be no stepmother to be your real parents. When they are both A, there is no place to come from 0 - the mother has either slept with another man or you have been adopted, that is. I'm sure that both of your parents with A and you 0 go to the municipality with the adoption registers should write who gave birth to you, but they are unlikely to tell you. I think the adoptions are still kept secret. but they may not inherit the blood type of either parent. For example, if one parent has blood type 0 and the other has blood type AB, then the children will have either group A or group B. There will be no stepmother to be your real parents. When they are both A, there is no place to come from 0 - the mother has either slept with another man or you have been adopted, this is it. I'm sure that both of your parents with A and you 0 go to the municipality with the adoption registers should write who gave birth to you, but they are unlikely to tell you. I think the adoptions are still kept secret. but they may not inherit the blood type of either parent. For example, if one parent has blood type 0 and the other has blood type AB, then the children will be either group A or group B. There will be no stepmother to be your real parents. When they are both A, there is no place to come from 0 - the mother has either slept with another man or you have been adopted, this is it. I'm sure that both of your parents with A and you 0 go to the municipality with the adoption registers should write who gave birth to you, but they are unlikely to tell you. I think the adoptions are still kept secret.
1 hungliketex answered
It is possible, but VERY RARE (several cases in India) for two parents with 0 blood type to have a child with A. This is a very rare phenomenon. In my opinion, you are either from another father or you are adopted. Don't dig so hard - you have your real parents - they raised you, they fed you, what do you want? Otherwise - anything is possible. Only with genetic analysis can they prove who your father is, who your parents are - the physical ones.