Because There Is a History of Hereditary Disease in the Families

Multiple Choice

Because there is a history of hereditary disease in the families of Alan and Veronica, they have arranged a meeting with a specialist at which they construct a family tree concerning the odds of them having a child with a birth defect. What do we call such an event?

A) amniocentesis
B) chorionic villus sampling
C) ancestry medical examination
D) genetic counselling