Yes, two parents with O+ blood types can definitely have children. In fact, their children will always have the O blood type. This is because the O blood type is recessive. Both parents carry two O genes, so the child will inherit one O gene from each parent, resulting in an OO genotype, which translates to an O blood type.
However, it's important to consider the Rh factor. While both parents have positive Rh factor, their children could inherit either positive or negative Rh factor. Here's why:
- Positive Rh factor: Each parent carries two Rh genes, one from each of their own parents.
- Negative Rh factor: Both parents could have a recessive negative Rh factor gene. If each parent passes on their negative Rh gene, their child will have a negative Rh factor.
Therefore, two O+ parents can have children with either O+ or O- blood types.
