In the context of patterns of inheritance, a dominant trait is one that is expressed in the phenotype even when only one copy of its gene is present. It masks the expression of a recessive allele when both are present in an individual.
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Recessive: A recessive trait is one that is not expressed in the phenotype unless two copies of its gene are present, effectively being masked by dominant traits when paired together.
Genotype: Genotype refers to the genetic makeup of an organism, indicating which alleles it possesses for a particular trait.
Phenotype: Phenotype describes the observable characteristics or traits of an organism, resulting from the interaction between its genotype and the environment