This hypothetical pedigree for a disease in humans illustrated inheritance that is

Autosomal recessive

Explanation:

Autosomal recessive is the genotypic type of expression of traits. In an autosomal recessive disorder, 2 copies of an abnormal gene must be present which are responsible for the development of the trait.

The parents of the individual that have an autosomal recessive each must carry a copy of a mutated gene or deffected or abnormal gene but they do not show signs and symptoms of the condition. The autosomal recessive disorders are not seen in every generation of the family which is affected.

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