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(1) Taxon is a:
A. Group of related species
B. Group of living organisms
C. Group of related families
D. Ranking
ANSWER - D
EXPLANATION - Each category in the taxonomic hierarchy represents the rank and is
commonly termed as a taxon. Hence, the correct option is Ranking.
(2) The expansion of ICBN is:
A. Indian Class of Botanical Nomenclature
B. Indian Code of Botanical Nomenclature
C. International Class of Botanical Nomenclature
D. International Code of Botanical Nomenclature
ANSWER - D
EXPLANATION - The scientific names are based on agreed principles and criteria, which are
provided in the International Code for Botanical Nomenclature (ICBN). Hence, the correct
option is the International code of botanical nomenclature.
(3) The expansion of ICZN is:
A. Indian code of zoological nomenclature
B. International class of zoological nomenclature
C. Indian class of zoological nomenclature
D. International code of zoological nomenclature
ANSWER - D
EXPLANATION - Animal taxonomists have evolved the International Code of Zoological
Nomenclature (ICZN). Hence, the correct option is the International code of zoological
nomenclature.
(4) A binomial nomenclature has ________ words.
A. Three
B. Two
C. One
D. Five
ANSWER - B
EXPLANATION - The first word in a biological name represents the genus while the second
component denotes the specific epithet. Hence, the correct option is Two.
(5) In Magnifera indica Linn, Linn denotes:
A. None of these
B. The name of the author who first described the genus.
C. The name of the author who first described the subspecies.
D. The name of the author who first described the species.
ANSWER - D
EXPLANATION - In Mangifera indica Linn, the word ‘Linn’ indicates that this species was first
described by Linnaeus. Hence, the correct option is the name of the author who first
described the species.
(6) The scientific name of organisms should be written as:
A. Subspecies species
B. Species genus
C. Genus species
D. Species subspecies
ANSWER - C
EXPLANATION - Mangifera Indica. Here, Mangifera is a generic name while Indica is a
specific name. Hence, the correct option is the Genus species.
(7) International Code of Biological Nomenclature is applied to_______.
A. Animals
B. Both Plants and Animals
C. Virus
D. Plants
ANSWER - B
EXPLANATION - Since biology deals with both plants and animals, the international code of
biological nomenclature is applied to both plants and animals. Hence, the correct option is
Both plants and animals.
(8) The first step in taxonomy is ______.
A. Description
B. Naming
C. Classification
D. Identification
ANSWER - D
EXPLANATION - The basics of taxonomy are the identification, naming, and classification of
organisms are universally evolved under international codes. Hence, the correct option is
Identification.
(9) Which one is the exclusive characteristic of a living organism?
A. Isolated metabolic reaction
B. Respiration
C. Increase in mass from inside
D. Perception of events happening in the environment
ANSWER - D
EXPLANATION - The most obvious and technically complicated feature of all living
organisms is this ability to sense their surroundings or environment and respond to these
environmental stimuli which could be physical, chemical or biological. We sense our
environment through our sense organs. Plants respond to external factors like light, water,
temperature, other organisms, pollutants, etc. All organisms, from the prokaryotes to the most
complex eukaryotes can sense and respond to environmental cues. Hence, the correct option
is the Perception of events happening in the environment and their memory.
(10) Living things differ from non-living things in a manner that:
A. Living things respond to the physical level
B. Living things are more in member than non-living
C. Living things have a different level of organisation
D. Living things perform various functions
ANSWER - C
EXPLANATION - The cellular level organisation of the body is the defining feature of life
forms or living things. Hence, the correct option is Living things have a different level of
organisation.
(11) Sometimes different authors give different names to one and the same species. In
such a situation:
(A) The name under which the species was first described is a valid name.
(B) The latest name under which the species was described is valid.
(C) People can use any one of the names for the species.
(D) All known names are discarded and a new name is given to the species.
A. (D)
B. (C)
C. (B)
D. (A)
ANSWER - D
EXPLANATION - In Mangifera indica Linn, the word ‘Linn’ indicates that this species was first
described by Linnaeus. Hence, the correct option is The name under which the species was
first described is the valid name.
(12) Hierarchical classification refers:
A. To divide division into classes
B. To divide classes into orders
C. To rank one above the other
D. To divide orders into families
ANSWER - C
EXPLANATION - Classification is not a single step process but involves a hierarchy of steps
in which each step represents a rank or category. Hence, the correct option is To rank one
above the other.
(13) Which of the following statement is correct with respect to nomenclature?
(A) The scientific name when typed or handwritten should be underlined.
(B) Generic names always begin with capital letters whereas specific names begin with small
letters.
(C) Scientific names should be printed in italics.
A. (A)
B. (B)
C. (C)
D. All of these
ANSWER - D
EXPLANATION - All of these are the universal rules of binomial nomenclature. Hence, the
correct option is All of these.
(14) In a scientific name, the name of the author is printed in ________.
A. Capital letters
B. Italics
C. Abbreviated
D. Bold
ANSWER - C
EXPLANATION - The name of the author appears after the specific epithet, i.e., at the end of
the biological name and is written in an abbreviated form, e.g., Mangifera indica Linn. It
indicates that this species was first described by Linnaeus. Hence, the correct option is
Abbreviated.
(15) Which are the terms interchangeable?
A. Genes and species
B. Taxonomy and systematics
C. Species and subspecies
D. Kingdom and phylum
ANSWER - D
EXPLANATION - The characterization, identification, classification, and nomenclature are the
processes that are basic to taxonomy as well as systematics. Hence, the correct option is
Taxonomy and systematics.
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