What parent blood types make O?

Each biological parent donates one of their two ABO alleles to their child. A mother who is blood type O can only pass an O allele to her son or daughter. A father who is blood type AB could pass either an A or a B allele to his son or daughter.Click to see full answer. People also ask, what parent blood types make O negative?Everyone has an ABO blood type (A, B, AB, or O) and an Rh factor (positive or negative). Just like eye or hair color, our blood type is inherited from our parents. Each biological parent donates one of two ABO genes to their child. The A and B genes are dominant and the O gene is recessive.Subsequently, question is, what blood types should not have babies together? If a person of O blood group breeds with a person of B group all the children must be either B or O. If the child is A or AB one of the individuals cannot be the parent. An O and B crossing can not produce an A or AB child. An AB with an O can produce A children or B children but not O. Considering this, can a child have a different blood type than both parents? While a child could have the same blood type as one of his/her parents, it doesn’t always happen that way. For example, parents with AB and O blood types can either have children with blood type A or blood type B. These two types are definitely different than parents’ blood types! They will match both parents.How do you get O negative blood?So each child has a 25% chance for having a negative blood type. To figure out how likely an O- blood type is, we need to multiply the chances for an O by the chances for a negative. When we multiply 0.5 by 0.25 we get 0.125. So each child has 12.5% or a 1 in 8 chance of having O- blood.