According to research examining the relationship between genotype and environment to intellectual abilities, which pairs would be MOST similar in intelligence?
A) Casey and Jordan, who are biological siblings
B) Eileen and Sarah, who are mother and daughter
C) Hugh and Connor, who are grandfather and grandson
D) Maleeka and Chantel, who are adopted siblings

Question

Quizplus · Accepted Answer

Biological siblings share approximately 50% of their genetic material, making their genotype more similar than other pairs listed. Additionally, they are likely to share similar environmental experiences due to growing up in the same family.

According to Research Examining the Relationship Between Genotype and Environment