Research conducted with identical twins who were raised together versus apart shows that:
A) genes play a large role in determining body weight and shape.
B) when the twins are reared apart, weight gain occurs in different body areas.
C) twins raised together are more similar in body shape than those reared apart.
D) the weight of twins reared apart is correlated more with their adoptive family members than it is with their twin.

Question

Quizplus · Accepted Answer

Research with identical twins who were raised together versus apart has consistently shown that genes play a significant role in determining body weight and shape. Twins who are genetically identical have more similar body weights and shapes than twins who are not genetically identical. Studies have shown that even when twins are raised separately and have different lifestyles and environments, their body weights and shapes are still highly correlated due to their shared genetic makeup.

Research Conducted with Identical Twins Who Were Raised Together Versus