Haji and Seb are identical twins who went to different adoptive families as infants.When they meet for a study at age 35,researchers find that Haji's measured IQ is 116 and Seb's is 97.Since they share the same genes and intelligence is highly heritable,how is this possible? Choose the best answer.
A) The brothers were probably given IQ tests by researchers who scored the tests differently.
B) IQ is not a valid indicator of ability,so people with similar intelligence often score very differently.
C) The environment affected where on the inherited reaction range each brother's IQ developed.
D) None of these.

Question

Quizplus · Accepted Answer

While identical twins share the same genes, the environment can still have an impact on their development, including their IQ scores. It is possible that each brother developed different cognitive skills and abilities depending on their upbringing and experiences, which could lead to differences in their IQ scores. Therefore, option C is the best answer. Option A is unlikely, as intelligence tests are standardized and scored in a consistent manner. Option B is not true, as IQ has been shown to be a reliable measure of cognitive ability. Option D is incorrect.

Haji and Seb Are Identical Twins Who Went to Different