Question

In printing scientific names, it is conventional only for the ________ to be underlined or italicized.
A. Binomial
B. Genus
C. Species
D. Division
E. Kingdom

Answer 1

Hint: In taxonomy the formal system of naming or writing species of living things is given by the system of nomenclature. It was introduced by Carl Linnaeus. Biologists from all over the world follow this system for naming the organisms. The scientific name consists of two parts. The scientific naming system generally uses Latin grammar.

Complete explanation:
Option A Binomial: Binomial or Binomial nomenclature is a universally accepted naming system for living organisms. It consists of two parts. The first part refers to the genus and the second part refers to the species of the organism. The general rule for writing or printing a scientific or binomial name is that the name should be underlined and in italics. The genus name should start with a capital letter and a species name with a small letter.
Option A is correct.
Option B Genus: Genus refers to the biological classification ranking between family and species. The genus name is the first word of a scientific name. It always starts with a capital letter. As the scientific name consists of two parts, this option is not correct
Option B is incorrect.
Option C Species: It is the basic unit of classification of an organism. The species forms the second part of the scientific name of living organisms. It always starts with a small letter. As the scientific name consists of two parts, this option is not correct
Option C is incorrect.
Option D Division: It is a taxonomic rank in biological classification. In botany and zoology, the division is employed in several ways. It is a rank in botany that is equivalent to phylum. Division is not a scientific name.
Option D is incorrect.
Option E kingdom: Kingdom is used to distinguish the type of cells and cell walls between the species. There are six kingdoms namely the Eubacteria, Archaebacteria, Plantae, Animalia, Fungi, and Protista. A kingdom is not a scientific name.
Option E is incorrect.

Hence, Option A. Binomial is correct.

Note:
There are two international codes for the naming protocol that have been accepted globally. They are the International Code of Botanical Nomenclature (ICBN) and International Code of Zoological Nomenclature (ICZN). These codes keep checking that each organism gets a specific name and is globally identified.