Recessive gene traits are expressed when an individual is homozygous for the gene.

Name: Recessive gene traits are expressed when an individual is homozygous for the gene.
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This is because recessive genes only show their effects in individuals who have two copies of the gene (homozygous). If an individual has one dominant and one recessive allele, the dominant allele will be expressed and the recessive allele will be masked.

Recessive Gene Traits Are Expressed When an Individual Is Homozygous