As part of an orientation to a genetic counseling practice, a group of medical students are differentiating between autosomal recessive disorders and autosomal dominant disorders. Which of the following statements is true of autosomal recessive disorders?

Question

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Autosomal recessive disorders tend to have a more uniform symptomology than autosomal dominant disorders. Their incidence is dependent on both members of the gene pair being affected, and there is a one in four risk of an affected child with each pregnancy. The associated disorders are usually attributable to enzyme deficiencies.

As Part of an Orientation to a Genetic Counseling Practice