1.What information would a scientist need to discover whether a disorder had a genetic cause, an environmental cause, or a combination of the two? 2.How do mutations affect an organism? Why can some mutations have no effect? 3.Which of these traits or behaviors is most likely determined by genes? a. Eye color b. Ability to ride a bike c. The languages you speak d. Your favorite food

Answer 1

1. Identical twin studies

2. Depends on the type of mutation.

3. eye color