Jacylyn and Jade are identical twins who were raised in different homes, but nevertheless have very similar IQ scores. This example provides support primarily for the influence of _____ on intelligence or IQ.
A) environment
B) genes
C) innate language capacity
D) neither genes nor environment

Question

Quizplus · Accepted Answer

The fact that identical twins who were raised in different homes but still have very similar IQ scores suggests a strong genetic influence on intelligence or IQ. If environment were the main factor, we would expect more variability in their IQ scores.

Jacylyn and Jade Are Identical Twins Who Were Raised in Different