Tag: biology

Quizzes (1160) Questions (12174)

Questions Related to biology

Multiple choice biology cell-the basic unit of life nucleus organelles in cell membranous and non-membranous organells

Hammerling's experiments on Acetobularia involved exchanging

  1. Cytoplasm

  2. Nucleus

  3. Rhizoid and stalk

  4. Gametes.
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation
  • Acetabularia cell is composed of three segments: the "rhizoid" or base which contains the nucleus, the "stalk," and the "cap." 
  • In his experiments, Hammerling grafted the stalk of one species of Acetabularia onto the rhizoid of another species. In all cases, the cap that eventually developed on the grafted cell matched the species of the rhizoid rather than that of the stalk.
  • This experiment shows that the base is responsible for the type of cap that grows. The nucleus that contains genetic information is in the base, so the nucleus directs cellular development.
  • So, the correct option is 'Rhizoid and stalk'.
Multiple choice biology classification of living organisms binomial nomenclature nomenclature of organisms naming of the organisms nomenclature in classification

Select the correctly written botanical/zoological name.

  1. Homo Sapiens

  2. Panthera tigris

  3. Pisum sativum

  4. Mangifera Indica
Reveal answer Fill a bubble to check yourself
B,C Correct answer
Explanation

The scientific naming of an organism is termed as Binomial nomenclature. It was first given by Carl Linnaeus. In this system, the first section of the name indicates genus and the second one indicating the species name. Genus name should always start with capital letter and the species name should start with the small letter. In the biological name both the words, when handwritten are separately underlined or printed in italics.

So, the correct answer is ‘Panthera tigris and Pisum sativum'.

Multiple choice biology classification of living organisms binomial nomenclature nomenclature of organisms naming of the organisms nomenclature in classification

Plants were given Latin names because it is a.

  1. Simple language

  2. Common language

  3. Dead language

  4. None of these
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The scientific names ensure that each organism has only one name. Description of any organism should enable the people (in any part of the world) to arrive at the same time. They also ensure that such a name has not been used for any other known organism. Dead language is a language that is no longer spoken by anyone as their main language.

So the correct option is "Dead language".

Multiple choice biology classification of living organisms binomial nomenclature nomenclature of organisms naming of the organisms nomenclature in classification

ICBN is?

  1. International Code of Biological Naming

  2. International Code of Botanical Nomenclature

  3. International Class of Biological Nomenclature

  4. International Classification of Biological Nomenclature
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

ICBN stands for International Code for Botanical Nomenclature (ICBN).

So the correct option is " International Code for Botanical Nomenclature".

Multiple choice biology classification of living organisms binomial nomenclature nomenclature of organisms naming of the organisms nomenclature in classification

The main objective of plant taxonomy is?

  1. To study the world's flora

  2. To provide a method for identification and nomenclature

  3. To provide Latin 'scientific' names for every group of plants in the world

  4. All of these
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Classification is the process by which anything is grouped into convenient categories based on some easily observable characters. Hence, based on characteristics, all living organisms can be classified into different taxa. This process of classification is taxonomy. External and internal structure, along with the structure of cell, development process and ecological information of organisms are essential and form the basis of modern taxonomic studies. Hence, characterization, identification, classification, and nomenclature are the process that is basis to taxonomy.

So the correct option is "To provide a method for identification and nomenclature".

Multiple choice biology classification of living organisms binomial nomenclature nomenclature of organisms naming of the organisms nomenclature in classification

In which of the following, scientific name, family and common name are correctly mentioned?

  1. Scientific name-Batrachospermum, Family-Rhodophyceae, Common name-Frog's spawn algae

  2. Scientific name-Spirogyra, Family-Chlorophyceae, Common name-Water net

  3. Scientific name-Lycopodium, Family-Lycopodiaceae, Common name-Sanjeevani

  4. Scientific name-Selaginella, Family-Lycopodiaceae, Common name-Little club moss
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Batrachospermum is the botanical name for frogs spawn algae, while the other options have incorrect scientific names.

So, the correct option is 'Scientific name-Batrachospermum, Family-Rhodophyceae, Common name-Frog's spawn algae'.

Multiple choice biology classification of living organisms binomial nomenclature nomenclature of organisms naming of the organisms nomenclature in classification

Which of the following statements regarding universal rules of nomenclature is wrong?

  1. The first word is biological name represents the genus.

  2. The first word denoting the genus starts with a capital letter.

  3. Both the words in a biological name, when handwritten, are separately underline.

  4. Biological names are generally in Greek and written in italics.
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Binomial nomenclature is a formal system of naming species of living things by giving each a name composed of two parts, both of which use Latin grammatical forms, although they can be based on words from other languages. Such a name is called a binomial name; more informally it is also called a Latin name. The first part of the name – the generic name – identifies the genus to which the species belongs, while the second part – the specific name or specific epithet – identifies the species within the genus.


So the correct option is 'Biological names are generally in Greek and written in italics.'

Multiple choice biology classification of living organisms binomial nomenclature nomenclature of organisms naming of the organisms nomenclature in classification

A homonym is 

  1. Two or more names for the same taxon.

  2. Species name repeats the generic name.

  3. Identical name of two different taxa.

  4. Name given to a taxon in local language.
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

A homonym is the identical name of two different taxa. 

The rule in the International Code of Zoological Nomenclature is that the first such name to be published is the senior homonym and is to be used (it is "valid") and any others are junior homonyms and must be replaced with new names.
For example, Cuvier proposed the genus Echidna in for the spiny anteater.
However, Forster had already published the name Echidna in for a genus of moray eels. Forster's use thus has priority, with Cuvier's being a junior homonym.
So, the correct option is 'Identical name of two different taxas'.

Multiple choice biology classification of living organisms binomial nomenclature nomenclature of organisms naming of the organisms nomenclature in classification

Common names are 

  1. Non-specific

  2. Scientific

  3. Morphological

  4. Universal
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
  • The local name of a particular plant or animal is non-specific and not sufficient for identification because they can have numerous local names according to regional languages.
  • For example, The lion is called lion in English and French, sher in Hindi, Leon in Spanish etc. 
  • So, there arises a need for a universal name that can be recognized by all the countries and regions. This lead way to the issuing of binomial names to plants and animals.
Hence, the correct option is 'Non-specific'.
Multiple choice biology classification of living organisms binomial nomenclature nomenclature of organisms naming of the organisms nomenclature in classification

Generic name should be written as 

  1. First letter capital and double word

  2. First letter small and double word

  3. First letter capital and single word

  4. First letter small and single word
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation
  • According to the conventions followed by binomial nomenclature, the scientific name comprises of Genus and Specific epithet.
  • The first letter genus is capitalized while species name is written in small alphabets. Example: Mangifera indica.
  • So, the correct option is 'First letter capital and single word'.