Which of the following patterns is typical for a disorder that is influenced by genetics?
A) Siblings of the person with the disorder are more likely to have the disorder than cousins, and cousins are just as likely to have the disorder as the general public.
B) Siblings of the person with the disorder will almost always have the same or similar disorders, and cousins are more likely than the general public to have disorders.
C) Siblings of the person with the disorder are more likely than cousins to have the disorder, and cousins are more likely to have the disorder than the general public.
D) Siblings will almost always have the same or similar disorders, though cousins may have a similar rate of the disorder as the general public.

Question

Quizplus · Accepted Answer

When a disorder is influenced by genetics, siblings are more likely to have the disorder than cousins, indicating a stronger genetic link between siblings. However, cousins are still more likely to have the disorder than the general public, suggesting that genetics play a role, but not as strong a role as in sibling relationships. Therefore, option C is the most typical pattern for a disorder that is influenced by genetics.

Which of the Following Patterns Is Typical for a Disorder