autosomal recessive: Describes a trait or disorder requiring the presence of two copies of a gene mutation at a particular locus in order to express observable phenotype; specifically refers to genes on one of the 22 pairs of autosomes (non-sex chromosomes)

Pedigree Illustrating Autosomal Recessive Inheritance Pattern

Probability of Transmitting an Autosomal Recessive Gene Mutation to Offspring

Revised: 2-5-04