Tag: nomenclature in classification

Questions Related to nomenclature in classification

In printing scientific names, it is conventional for only the .......... to be underlined or italicized.

  1. Binomial

  2. Genus

  3. Species

  4. Division

  5. Kingdom


Correct Option: A
Explanation:

The binomial system of nomenclature was first introduced in 1753 by Carl von Linne, who is known by his latinised name Linnaeus. According to the binomial system, the name of the organism consists of two latin words. The first word which begins with a capital letter refers to the genus. The second word, which begins with lower case letter, refers to species. Both are written in italics or underlined. Hence option A is the correct answer. 

In the early 1700's, the classification system used was

  1. Polynomial

  2. Pentanomial

  3. Binomial

  4. Tetranomial

  5. Trinomial


Correct Option: A
Explanation:

  • The term Nomenclature means the scientific naming of organisms according to an established system. In earlier days common vernacular names were used which generally changes with change of language. Later in the haunt of one common internationally accepted name for a species, scientific names (Technical names) have been introduced in the form of Polynomial, binomial and trinomial systems of nomenclature.
  • In the early 17th century, taxonomists started using a string of descriptive Latin words to designate a species. For example, in the herbal of Clusius (1583) a species of willow is named as Salix pumila angustifolia altera.
  • Polynomial nomenclature was discarded for the two main reasons that it was lengthy and difficult to remember, it often varies from place to place, scholar to scholar based on the characters chosen by them.
So the correct option is Polynomial system.

Botanical name of Sanjeevani is

  1. Selaginella chrysocolla

  2. Selaginella bryopteris

  3. Selaginella chrysorhizos

  4. None of the above


Correct Option: B
Explanation:

Selaginella bryopteris (L.), popularly known as Sanjeevani, is a plant with medicinal properties. Sanjeevani grows on the hills of tropical areas, particularly the Arawali mountain terrains from east to west in India. Traditionally plants have been used to: (i) relief from heat stroke and the burning sensation during urination; (ii) restorating menstrual irregularities to normal and applied topically to pregnant women, aids easy delivery; and (iii) for treating jaundice. So, the correct answer is 'Selaginella bryopteris'.

The name of genus begins with a ........... and the name of species begins with ........ letter.

  1. Capital letter, small letter

  2. Small letter, capital letter

  3. Capital letter, italics letter

  4. Small letter, italics letter


Correct Option: A
Explanation:

While writing the scientific names, certain conventions need to be followed such as the name of genus begins with a capital letter and name of species begins with small letter.

In zoological name of an organism the first word will be

  1. Generic name

  2. Specific name

  3. Name of the order

  4. Family name


Correct Option: A
Explanation:

In the Binomial system of nomenclature zoological name of an organism consist of two parts. The first part starts with a capital letter and represents genus, the second name that does not start with the capital letter is species name. Both the names are underlined separately.

So, the correct answer is option A.

In plants, Latin names are suggested because

  1. Latin name is simple

  2. Universal identification is required 

  3. It is easy to write

  4. None of these


Correct Option: B
Explanation:

  • Plants have Latin names due to Binomial Nomenclature System of naming plants developed by famed Swedish botanist, Linnaeus.
  • Using Latin names helps to avert confusion caused by the often contradictory and multiple common names an individual may have.
  • He picked the Latin language because it's a dead language and is universally identified
So the correct option is universal identification is required. 

Biological names are regarded legitimate when

  1. They are not illegitimate

  2. They are very popular

  3. They have their holotypes

  4. All of the above


Correct Option: D
Explanation:

Biological names are regarded legitimate when, they are not illegitimate, very popular and have their holotypes.
So, answer is - 'All of the above'.

When generic name is repeated in specific name of a species, it is called

  1. Synonyms

  2. Antonyms

  3. Tautonyms

  4. None of the above


Correct Option: C
Explanation:

A tautonym is a scientific name of a species in which both parts of the name (the genera and species) have the same spelling, for example - Bison bison Linnaeus, 1758 for American Bison.

Which is correct about energy changes in living cells?

  1. First energy transfer, then energy transformation

  2. First energy transformation, then energy transfer

  3. Both occur discontinuously

  4. Both occur continuously


Correct Option: D
Explanation:

The chemical energy from the organic molecules is transformed into a simpler form by cells through cellular respiration (Energy Transformation) and then transferred to other tissues of the body for their metabolic activities (Energy transfer). Both these processes happen continuously in our body.

The correct answer is D.

Which of the following gives benefit to using the common name in different countries?

  1. Vernacular name

  2. Tautonyms

  3. Binomial nomenclature

  4. None of the above


Correct Option: C
Explanation:

The binomial nomenclature is the use of the genus and species name system for describing all the living organisms. The method is beneficial as it prevents confusion in the names used in different places and makes it easy that one organism is known by the same name throughout the world. 

Thus, the correct answer is option C.