Two health care workers are comparing the etiology and incidence of multifactorial inheritance disorders and single-gene disorders. Which of the following statements best captures the relationship between the two types of genetic disorders?
A. “A couple with a child with a multifactorial disorder has a higher risk of having another with the same disorder.”
B. “Multifactorial disorders are more likely to involve multiple organs.”
C. “Multifactorial disorders and single-gene disorders can both be predicted quite accurately.”
D. “Multifactorial disorders manifest themselves at birth.”