A recessive trait on an autosome will be expressed only if both chromosomes have a recessive gene.

Name: A recessive trait on an autosome will be expressed only if both chromosomes have a recessive gene.
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This is the definition of a recessive trait. If an individual has one dominant allele and one recessive allele, the dominant allele will be expressed and mask the recessive trait. Both alleles have to be recessive for the trait to be expressed.

A Recessive Trait on an Autosome Will Be Expressed Only