Which of the following pairs of people are most likely to score the same on an IQ test?
A) Jason and Nolan, identical twins
B) Davad and Enid, fraternal twins
C) Malcolm and Terry, father and son
D) Remas and Noor, mother and daughter

Question

Quizplus · Accepted Answer

Identical twins share virtually the same genetic material, so they are more likely to have very similar IQ scores. Fraternal twins, on the other hand, share only about 50% of their genes, so they may have different IQ scores. The same goes for a parent-child pair or a mother-daughter pair, as they only share around 50% of their genes.

Which of the Following Pairs of People Are Most Likely