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)
"Multifactorial disorders and single-gene disorders can both be predicted quite accurately."
B)
"Multifactorial disorders are more likely to involve multiple organs."
C)
"Multifactorial disorders manifest themselves at birth."
D)
"A couple with a child with a multifactorial disorder has a higher risk of having another with the same disorder."
Ans:
D
Feedback:
Parents of a child with a multifactorial disorder have a higher chance of having the disorder recur with another child. Multifactorial disorders are less predictable than single-gene disorders and usually involve single organs. They can manifest themselves at any point in the life span.
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