Answer:
Study MZ twins with asthma who live in areas that differ in degree of air pollution.
Answer:
Not likely. Nature has already conducted this experiment with identical twins, which are a type of clone. The fingerprint patterns are a multifactorial trait and even subtle environmental conditions resulting from the position of a fetus in the womb cause differences in the fingerprint patterns of identical twins.
Answer:
Fraternal twins share the same fetal environment. They are also the same age and therefore may share more experiences.