Affected children have at least one affected parent.?

This statement suggests that the condition or trait in question is likely inherited in an autosomal dominant pattern, where only one copy of the mutated gene from an affected parent is sufficient for a child to be affected. In such cases, the likelihood of passing on the trait or condition is higher, as each child of an affected parent has a 50% chance of inheriting the trait. However, it's also possible for new mutations to occur, leading to affected children without an affected parent.