Question

The assumption that differences between monozygotic (or identical) twins are caused entirely by genetic factors is called the _____ assumption because such twins are believed to have shared the same womb, were born at the same time, have lived in the same family and community, and are always the same age when tested.
a) homogenomic
b) environmental effects
c) equal environments
d) heritability plasticity

Answer 1

Answer:

Option C

Equal environment

Explanation:

The equal environment assumption is a biometric model that predicts how far the monozygotic twins are correlated to each other upon their exposure to environmental effects which are of etiologically significance to the trait/traits under consideration.