4. Biologivsl Explanation

Question 1

Genetic: Christiansen

Answer 1

Looked at 3500 twins -> 35% Mz and 13% dz concordance rate = must be a genetic element

Question 2

Genetic: Crowe

Answer 2

Adoption studies -> if a child has a criminal mother, they have a 50% risk factor of being a criminal compared to 5% for children with no criminal parents.