Select the incorrect statement in reference to the Binomial nomenclature:

Question

Accepted Answer

The correct option is 4: Tautonyms are allowed in plants and animals.

This statement is the *incorrect* one in reference to the rules of Binomial Nomenclature, which makes it the correct answer to the question. A tautonym is a scientific name in which the generic name (Genus) and the specific epithet (species name) are exactly the same, such as *Gorilla gorilla* or *Rattus rattus*. Under the International Code of Zoological Nomenclature (ICZN), which governs animal naming, tautonyms *are* permitted, and many examples exist. However, the rule is different for the plant kingdom: the International Code of Nomenclature for algae, fungi, and plants (ICNafp) explicitly prohibits the use of tautonyms. According to the botanical code, the two parts of the name must be different, even if only by a slight variation. Since the statement claims tautonyms are allowed in both plants and animals, the inclusion of "plants" makes the entire statement factually inaccurate regarding the universal system of nomenclature.

The incorrect option is 1: Each organism belonging to a genus has a specific name.

This statement is a correct and fundamental principle of the binomial system, which states that every recognized species has a unique two-part name: the generic name (Genus) and the specific epithet (species name). The specific epithet is necessary because it is the term that distinguishes one particular species from all other species that belong to the same genus. For instance, in the name *Homo sapiens*, *Homo* is the genus, and *sapiens* is the specific name that defines our species within that genus. Without the specific name, an organism is only identified up to the genus level, which is insufficient for clear, universal scientific identification.

The incorrect option is 2: Same specific name can be given to organisms belonging to different genera.

This statement is correct under the rules of Binomial Nomenclature. The core requirement for uniqueness is that the entire binomial (Genus + species epithet) must be unique for every organism, but the specific epithet alone is not required to be unique across the whole of nature. You may find the same specific epithet used in different genera, which are entirely separate groups of organisms. For example, the specific epithet 'indica' is used in both *Mangifera indica* (mango) and *Tamarindus indica* (tamarind), which belong to different genera. This practice is permissible because the genus name clearly separates the two organisms, ensuring no confusion arises in their classification.

The incorrect option is 3: Linnaeus used Latin for Binomial nomenclature as it was a dead language.

This statement accurately reflects the rationale behind the use of Latin in scientific naming. Carolus Linnaeus chose Latin for all scientific names precisely because it is a "dead" language, meaning it is no longer actively spoken and is thus impervious to change. Living languages constantly evolve through new words, changing definitions, and shifting grammar, which would lead to instability in scientific names. By using Latin, Linnaeus ensured that the names would remain constant, stable, and universally understood by scientists across the globe and throughout history.