Types of Classification

Q.

Key is a taxonomic aid for the identification of specimens. Each statement in the Key is called a?

1. Lead

2. Couplet

3. Both A and B

4. None of these

Q.

What is the full form of i) ICBN and ii) ICZN?

Q.

What is cytotaxonomy and chemotaxonomy?

Q.

Who is regarded as the Father of Biology?

Q. Chemotaxonomy is based on

1. chemical constituents
2. evolutionary relationship
3. arrangement of stamen
4. morphology

Q.

Why is morphology important in biology?

Q.

Are humans chordates?

Q.

The amnion of mammalian embryo is derived from

1. endoderm and mesoderm

2. ectoderm and endoderm

3. ectoderm and mesoderm

4. mesoderm and trophoblast

Q. Which of the following suffixes used for units of classification in plants indicates a taxonomic category of family?

Q.

What does icbn stands for?

Q. How many of these is/are example(s) of homologous structures?
I. Vertebrate hearts
II. Potato and carrot
III. Potato and radish
IV. Vertebrate brains
V. Flippers of penguin and dolphin

1. Five
2. Four
3. Three
4. Two

Q.

What is a Bacteriophage?

Q. Choose the incorrect option about classification of plants:

1. Early humans classified plants based on utility - edible, poisonous and medicinal plants
2. Aristotle’s system of classification is based on height and girth of the plant
3. Carl Linneaus’ system of classification was based on the physical characteristics of reproductive structures of the plant
4. Bentham and Hooker’s classification was an artificial system of classification

Q. Draw labelled diagrams of
a. Female and male thallus of a liverwort
b. Gametophyte and sporophyte of Funaria
c. Alternation of generation in Angiosperm

Q. Which one of the following is the first gibberellin to be discovered?

1. $G{A}_1$
2. $G{A}_2$
3. $G{A}_3$
4. $G{A}_0$

Q.

What is the difference between numerical taxonomy and cytotaxonomy?

Q.

As per Eichler, what are the two sub-kingdoms of the plant kingdom?

Q. All vertebrates are chordates but all chordates are not vertebrates, why?

1. Notochord is replaced by vertebral column in adult of some chordates
2. Ventral hollow nerve cord remains throughout life in some chordates
3. All chordates possess vertebral column
4. All chordates possess notochord throughout their life

Q. Match the following:

	Column I		Column II
A	Artificial	i	Evolutionary relationships
B	Natural	ii	Vegetative characters
C	Phylogenetic	iii	Internal features

1. A-i, B-ii, C-iii
2. A-ii, B-i, C-iii
3. A-iii, B-ii, C-i
4. A-ii, B-iii, C-i

Q. Choose the option with correct statements about the reason for further classification of Kingdom Plantae:
I. Convenient to place new organisms
II. Categorization allows ease in categorizing newly discovered organisms
III. Sort the huge diversity of organisms
IV. A dump of organisms looks ugly and classification is presentable

1. Only I
2. Only I and IV
3. Only II and III
4. Only I, II and III

Q. Choose the incorrect statement about numerical taxonomy.

1. It takes into account all observable characteristics
2. Each character is given equal weightage
3. Cannot be carried out using softwares
4. Hundreds of characters can be considered at a time

Q.

Why is classification important in biology?

Q.

Directions: Choose the correct option:

Assertion $\left(A\right):$ Prototherians are egg laying mammals.

Reason $\left(R\right):$ They act as a connecting link between reptiles and mammals.

1. Both assertion$\left(A\right)$ and reason$\left(R\right)$ are true and reason$\left(R\right)$ is the correct explanation for assertion$\left(A\right).$
2. Assertion$\left(A\right)$ is false and reason$\left(R\right)$ is true.
3. Both assertion$\left(A\right)$ and reason$\left(R\right)$ are true, but reason$\left(R\right)$ is not the correct explanation for assertion.
4. Assertion$\left(A\right)$ is true and reason$\left(R\right)$ is false.

Q. Ploidy of the egg of an angiosperm is

1. haploid
2. diploid
3. triploid
4. polyploid

Q. Define chemotaxonomy.

Q. X classification system classifies organisms based on one or very few morphological features. Y classification system classifies organisms on the basis of both internal and external features. Identify X and Y.

1. X - Natural, Y - Artificial
2. X -Aristotle’s, Y - Carl Linneaus’
3. X - Artificial, Y - Natural
4. X - Carl Linneaus’, Y - Aristotle’s

Q.

Father of Biology is _____________.

Q. Which of the following classification system is based entirely on the vegetative properties and the androecium structure of a plant?

1. Artificial
2. Natural
3. Phylogenetic
4. Bentham and Hooker's

Q. Differentiate between artificial and natural systems of classification.

Q.

What is the phylogenetic tree?