Final answer:
In genetics, when both parents' contributions to a gene pair are recessive, the pair is referred to as homozygous, resulting in the expression of the recessive trait.
Explanation:
When both parents' contributions to a gene pair are recessive, the pair is referred to as homozygous. In genetics, an individual with two recessive alleles (aa) is termed as homozygous recessive, indicating both copies of the gene for a specific trait are recessive. This condition results in the expression of the recessive trait in the phenotype.
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