Examlex
Too little oxygen in cells is called ________.
Recessive Allele
An allele that produces its characteristic phenotype only when its paired allele is identical.
Dominant Allele
A dominant allele is one version of a gene that masks the presence of a recessive allele in the pair, meaning the trait it represents is expressed even when only one copy is present.
Codominance
A genetic scenario where two alleles of a gene are expressed equally in the phenotype of the organism, neither being recessive to the other.
Polygenic Inheritance
Refers to the contribution of a variety of genes—sometimes very many—to a particular trait.
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