Allele and Recessive allele

Allele noun - (genetics) either of a pair (or series) of alternative forms of a gene that can occupy the same locus on a particular chromosome and that control the same character.

Recessive allele and allele are semantically related. In some cases you can replace phrase "Recessive allele" with "Allele", this terms are similar.

Recessive allele noun - An allele that produces its characteristic phenotype only when its paired allele is identical.

Allele and recessive allele are semantically related. You can use "Allele" instead a noun phrase "Recessive allele".