Fraternal twins
A)come from two separate eggs fertilized at the same time.
B)are genetically no more alike than ordinary siblings.
C)have IQs that are more alike than the IQs of ordinary siblings when both the twins and the ordinary siblings are raised in the same environment.
D)are characterized by all of these.

Question

Quizplus · Accepted Answer

Fraternal twins come from two separate eggs fertilized at the same time, making them genetically no more alike than ordinary siblings. However, research has shown that fraternal twins have IQs that are more alike than the IQs of ordinary siblings when both are raised in the same environment. Therefore, choice D is the best answer.

Fraternal Twins