Isaac is a teenager who has a very difficult relationship with his father. One day he is talking to his girlfriend,
Chloie, and he says, "I swear I am never going to be anything like that man when I get older!" Chloie knows about
the research in personality and heritability, and smiles as she remembers that about \_\_\_\_ % of our adult
personality is directly linked to the contribution of genetics.
Ο 60
Ο 85
Ο 5
Ο 40