Using identical twins to study heritability is complicated by the fact that:
A)identical twins often experience identical uterine environments, whereas fraternal twins do not.
B)identical twins are often treated more similarly to one another than are fraternal twins.
C)fraternal twins often share the same uterine environment, whereas identical twins do not.
D)identical twins often experience a more similar uterine environment and more similar treatment during childhood than do fraternal twins.
E)even identical twins are sometimes genetically different from one another.

Question

Quizplus · Accepted Answer

Identical twins share the same genetic makeup and often experience both a highly similar uterine environment and similar treatment during childhood compared to fraternal twins. This can complicate studies on heritability because it's difficult to separate the effects of genetics from the effects of environment.

Using Identical Twins to Study Heritability Is Complicated by the Fact