Home            Q.008 Polyposis

The chance of the sister of someone affected by MUTYH-associated polyposis (MAP)
 having the same condition is closest to which of the following?

A. 100%
B.   75%
C.   50%
D.   25%
E.     5%

D. 25%, because this type of familial colorectal cancer is inherited in an autosomal recessive fashion

See chapter 13 of the book for more information.