Question:

Phenetic classification of organisms is based on

Updated On: Jun 21, 2024

  • The ancestral lineage of existing organisms

  • Dendogram based on DNA characteristics 

  • Sexual characteristics

  • Observable characteristics of existing organisms 

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The Correct Option is D

Solution and Explanation

The term "phenetic" originates from the Greek word "phainein," which means "to appear." In this classification approach, organisms are categorized based on their readily observable characteristics. These observable features primarily encompass an organism's morphology and other traits that can be visibly discerned. In summary, phenetic classification relies on the observable traits of living organisms.
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Concepts Used:

Nomenclature and Taxonomy

A branch of science that deals with the nomenclature, identification, and classification of living organisms and extinct organisms is known as taxonomy. We have millions of species on Earth that are commonly known by their local names.

The nomenclature of an organism is only possible when we correctly know all the specifications of the organism that describes them clearly. The described process of an organism is known as identification.

Rules for the Binomial Taxonomy Nomenclature:

  1. Irrespective of their origin, these biological names are derived from Latin words and are written in italics.
  2. ‘Genus’ - is the first word in the biological name whereas the second word represents a specific epithet.
  3. To show the Latin origin both the genus and specific epithet are separately underlined or written in italics.
  4. With capital letters, the genus should start and with a small letter, a specific epithet starts.
  5. The name of the author should be written in the abbreviated form after the specific epithet which denotes the name of the person who described the species such as Mangifera indica Linn. In this Linn indicates the Biologist Linnaeus who for the very first time described the species of mango.