Q. International Codes used for system of binomial nomenclature?
In 1753 Linnaeus suggested a system of binomial nomenclature where each individual is denoted by two epithets, the first denoting generic name and the second representing specific name. Such scientific names were very convenient and the idea was universally accepted by the botanists. In order to have international agreements on the issues, international congresses have been organized from time to time and rules adopted are published in the form of international code of Botanical, Zoological, Bacteriological and Viral nomenclature systems. The formation and usage of the scientific names of animals are governed by International Code of Zoological Nomenclature (ICZN). Organisations responsible at an international level for preparation of the Zoological codes are divisions of Zoology of International Union of Biological Sciences (IUBS). For naming plants including fungi and lichens there is International Code of Botanic41 Nomenclature (ICBN). Besides, there is a commission on the nomenclature of plants and the International Association of Plant Taxonomy (IAPT). For naming bacteria there is the International Code of Nomenclature of Bacteriology (ICNB). Viral Nomenclature is governed by the International Code of Viral Nomenclature (ICVN). There is a separate code of nomenclature for cultivated plants, International Code of Nomenclature for Cultivated Plants (ICNCP).