A Group of Scientists Has Been Asked to Report on the Efforts

A group of scientists has been asked to report on the efforts to identify the specific genes involved in bipolar disorder. What are they likely to conclude?

A) The gene is located on the sex chromosomes.
B) Current research suggests that a combination of dozens of genes is responsible for the disorder.
C) The genes involved are likely to be different depending on the individual's sex and ethnic background.
D) The search continues because several genes have been identified but few have been found in more than one study.