Final answer:
If a child has an autosomal disorder but both parents are normal, this is described as an autosomal recessive disorder. Both parents are carriers of the disorder, but do not display any symptoms. The child has a 25 percent chance of inheriting the disorder.
Step-by-step explanation:
If a child has an autosomal disorder but both parents are normal, this is described as an autosomal recessive disorder. An autosomal recessive disorder is one that occurs when two copies of a defective gene are present in an individual's DNA. In this case, both parents are carriers of the disorder but do not display any symptoms. The child has a 25 percent chance of inheriting the disorder.
Learn more about autosomal recessive disorder