Why Are Complex or Multifactorial Disorders More Commonly Expressed Among

question 12

Multiple Choice

Why are complex or multifactorial disorders more commonly expressed among adults than among children?

• A)As adults age, there is more time for environmental factors to influence the expression of a genetic disorder.
• B)Gene expression in adults is greater than in childhood as a result of age-related amplification of gene copy numbers.
• C)Children have better DNA repair mechanisms than adults and are more likely to correct a predisposition for a complex disorder.
• D)In order for a complex or multifactorial disorder to be expressed in childhood, the child must be homozygous for the genetic mutation.

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