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Can the genus name and the specific epithet be exactly identical in a scientific name?

Answer and explanation

Correct answer: Possible in animals, as tautonymy, but not in plants

The correct answer is A. A scientific name normally has two parts: the genus name followed by the specific epithet, for example *Homo sapiens*. In zoological nomenclature, the genus and specific epithet may sometimes be identical; this repetition is called a tautonym. *Naja naja* is a familiar example used for the spectacled cobra. In botanical nomenclature, however, a tautonym is not accepted: the genus name and specific epithet must not be exactly the same. Option A is correct because it states this difference between animal and plant naming codes. Option B reverses the rule, so it is wrong. Option C wrongly says that both codes permit identical names. Option D is also wrong because zoological names can use tautonymy. Memory cue: “zoology allows repetition; botany blocks it.”

Related tags

Binomial NomenclatureTautonymyZoological NomenclatureBotanical NomenclatureTaxonomyTaxonomy Binomial NomenclatureThe Living WorldBiology

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