The conversation between human and AI assistant.
Both my grandparents had brown eyes. All three of their children had blue eyes. How likely is that to happen?
So if both of my grandparents carried a recessive allele for blue eyes, then all three of their children could have ended up with blue eyes even though they had brown eyes themselves?
Yes, that is a possibility. It's important to note that eye color inheritance is not completely understood and there are exceptions to the typical patterns. However, this scenario you mentioned is possible based on what is known about genetics.