Brenna and Serena are identical twins.Brenna has just been diagnosed with autism spectrum disorder.The likelihood that Serena will also have the disorder is ________ percent.
A) 25
B) 50
C) 75
D) 99

Question

Quizplus · Accepted Answer

Studies have shown that if one identical twin has autism spectrum disorder, there is about a 75% chance that the other twin will also be affected. Identical twins share nearly all their genes, which plays a significant role in the high concordance rate for autism.

Brenna and Serena Are Identical Twins