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ASSIGNMENT BOOKLET
Bachelor’s Degree Programme in Science
(B.Sc.)
Taxonomy and Evolution (LSE-07)
ASSIGNMENTS 2003
ASSIGNMENT-1 TMA
ASSIGNMENT-2 CMA
SCHOOL OF SCIENCES
Indira Gandhi National Open University
Maidan Garhi
New Delhi – 110 068.
LSE-07
LSE-07
Assignments 1 and 2
2003
Dear Students,
As explained in the Programme Guide for B.Sc, you will have to do 2 assignments for the
course LSE – 07. One of the assignments is Tutor Marked (TMA) and the other is Computer
Marked (CMA). The block-wise distribution of assignments is as follows:
Assignment – 1 (TMA)
Assignment – 2 (CMA)
Block 1 to 4
Block 1 to 4
The instructions for doing the assignments are provided in the Programme Guide under
Section 7.1 Assignment. You should read the instructions carefully before you start doing
these assignments.
Please submit your assignments as follows:
Assignment No.
Assignment – 1 (TMA)
Assignment – 2 (CMA)
Date of Submission
12 weeks after receiving the
printed material with
assignments.
12 weeks after receiving the
printed material with
assignments.
Where to Send
The Coordinator of your study
centre
The Director (SR&E),
Indira Gandhi National Open
University,
Maidan Garhi,
New Delhi – 110068.
Answer sheets received after the due date shall not be accepted.
We strongly suggest that you retain a copy of your assignments.
Wishing you good luck.
2
ASSIGNMENT – 1
(Tutor Marked Assignment)
Course Code : LSE-07
Assignment Code : LSE-07/AST-1/TMA-1/2003
Max. Marks : 100
1. a) What are the aims and objectives of taxonomy, also give a brief accounts of its
importance.
(1+1+3)
b) Give a brief history of animal taxonomy.
(5)
2. a) Define artificial, natural and phylogenetic systems of classification.
b) Discuss merits and demerits of Bentham and Hooker’s system.
(3+7)
3. Depict five kingdom classification systems only through chart and give its merits and
demerits.
(6+4)
4. Write short notes on the following
a) Type specimens
b) Keys
c) Botanical gardens
d) Wild life sanctuaries
(2½ × 4)
5. a) What are the procedures adopted by numerical taxonomist.
b) Describe how biochemical studies help in the classification of animals with
examples.
(5+5)
6. Discuss the facts and inferences on the basis of which Darwin formulated his theory of
evolution.
(10)
7. a) What is natural selection?
b) Explain the action of natural selection on the populations under different
environmental conditions.
8. a) What is biological species concept?
b) Discuss with the help of examples any two mechanisms of speciation.
[1+(3×3)]
(2+4+4)
9. Explain how language has played an important role in the evolution of human culture.
(10)
10. Write short notes on the following.
a) Absolute dating
b) Analogous organs
c) Coadapted communities
d) Homo sapiens
(2½×4)
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ASSIGNMENT – 2
(Computer Marked Assignment)
Course Code : LSE-07
Assignment Code : LSE-07/AST-3/CMA-1/2003
Max. Marks : 100
1.
Which of the following is the smallest unit in classification
1) phylum
2) order
3) class
4) species
2.
Which of the following is not a objective of taxonomic classification
1) to inventory the world flora and fauna
2) to produce only one method for identification and communication
3) to produce a coherent and universal system of classification
4) to demonstrate the evolutionary implications of plant and animal diversity
3.
Who was called father of taxonomy
1) Linnaeus
2) Lamarck
3) Darwin
4) Wallace
4.
In Triticum aestivum, Triticum represents the
1) local name
2) botanical name
3) generic name
4) specific name
5.
Linnaeus system of classification is also known as
1) artificial system of classification
2) sexual system of classification
3) numerical system of classification
4) All of the above
6.
A pure cladistic classification of crocodiles will represent, the grouping of crocodiles
with
1) reptiles
2) birds
3) frogs
4) none of the above
7.
The taxonomic character useful for classifying organims should be
1) measurable
2) describable
3) relatively invariable of environment
4) all of the above
8.
Which of the following is not a homologous structure
1) Forelimbs of horses
2) Forelimbs of humans
3) Wings of birds
4) Wings of butterflies
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9.
Which of the following is example of phylum Cyanonbacteria
1) Bacillus
2) Anabaena
3) Amoeba
4) Pleurococcus
10.
The spiny skinned animals, adult having five part radial symmetry, endoskeleton and
water vascular system belong to phylum
1) Porifera
2) Coelenterata
3) Nematoda
4) Echinodermata
11.
The basic language of the scientific name is
1) English
2) German
3) Latin
4) Any language can be used
12.
A genus is monotypic when it has
1) only single species
2) one member of single species
3) one member each of several families
4) two or more species
13.
What does caramanica reflects in the name Pinus nigrai var caramanica
1) it is name of genus
2) it is name of species
3) it is name of variety
4) it is common name
14.
Collection of about 50 samples of a plant population will provide information
1) on frequency of variation of species
2) discontinuity of variation of species
3) correlation between variable of speies
4) all of the above
15.
A collecting pick is required for
1) cutting branches and other plant parts
2) cutting woody and hard material;
3) the study of stamens and carpels
4) digging up roots and rhizomes
16.
The best period to collect plants in our country is
1) January - March
2) February - September
3) March
- June
4) April
- July
17.
Insects are killed by killing agent such as
1) methyl alcohol
2) ethyl alcohol
3) ethyl acetate
4) formalin
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18.
A good botanic gardern explains
1) evolution of cultivation of plants
2) horticultural practices for a layman
3) housewives to get interested in gardening
4) all of the above
19.
Which of the following in correctly matched
1) Kaziranga wild life sanctuary - Assam
2) Periyar wild life sanctuary - Kerala
3) Mudumalai wild life sanctuary - Mysore
4) Sesan Gir - Gujarat
20.
Ranunculaceae family was distinguished from paeonia because of
1) a unique type of embryogeny
2) floral morphology
3) unique seed coat
4) unique type of fertilization
21.
Monocolpate pollen grains are characteristic of
1) primitive dicotyledon plants
2) monocotyledon plants
3) primitive dictoyledon and monocotyledon plant
4) advanced dicotyledon plant
22.
Which of the following genus have different chromosome numbers forming a
mathematical series
1) Festuca
2) Triticum
3) Aegilops
4) Paeonia
23.
Key are constructed by using
1) similar character
2) contrasting character
3) the characters which have less variations
4) all the characters of plant kingdom
24.
Which of the following plant have compound starch grains
1) Hordeum
2) Lolium
3) Nardus
4) Papapholis
25.
A systematist can use data from DNA hybridization to
1) predict future change in species
2) determine when a species diverged
3) identify phylogenetic similarity among species
4) explain the origin of life
26.
Which one of the following is not the inference on which Darwin’s theory of evolution
is based?
1) Struggle for existence
2) Inheritance of acquired characters
3) Survival of the fittest
4) Natural selection
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27. The idea that heredity always moves from germplasm to somatoplasm was first given by
1) Charles Darwin
2) Gregor Mendel
3) G.G. Simpson
4) August Weissman
28.
The concept of punctuated equilibrium suggests that
1) Darwin treated evolution of man differently from other animals
2) average rate of evolution is a constant rate
3) evolution occurred in jerks rather than being gradual
4) in the genomes many nucleotide sequences duplicate several times but without
function
29.
One of the reasons why fossil record is not a perfect geological record is that
1) most of past organisms have survived as fossils
2) once the organism is dead, it is wholly preserved
3) not all the species are fossilisable
4) rocks with their fossils tend to remain same
30.
Homologous organs
1) look alike superficially
2) arise from common ancestory
3) essentially carryout same function
4) are vestigeal in nature
31.
Haeckel’s biogenetic law states that
1) adaptations are favoured by natural selection
2) differences in cleavage is due to amount of yolk
3) new growth differs histologically from normal tissue
4) developmental history of an organism recalls its racial history
32.
Evidences of evolution does not necessarily come from
1) comparative physiology
2) study of vestigial organs
3) comparative biochemistry
4) study of mutations
33.
Variability
1) is the ability of the organism to struggle
2) refers to differences in heritable traits
3) ensures the survival of the organism
4) limits the reproductive potential
34.
Adaptive value
1) is the change in heritable trait
2) increases the adaptation ability
3) is the measure of reproductive efficiency
4) measures the selection pressure
35.
Normalising selection works in
1) extreme environment
2) heterogeneous environment
3) changing environment
4) uniform environment
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36.
Industrial melanism
1) proves Lamarckism
2) explains the concept of directional selection
3) was due to over population of moths
4) is not significant in the study of evolution
37.
Niche specialization is a mechanism by which
1) change in the environment can be withstood
2) prey-predator relationship is evolved
3) coevolution of all biological relationships occurs
4) competition between the species is minimized
38.
The behaviour pattern of an individual in the population for the benefit of other
members is known as
1) group selection
2) kin selection
3) competition
4) altruism
39.
Coevolution
1) confirms the theory of sexual selection
2) explains the theory of kin selection
3) relates to coordinated evolution of species occupying different levels in a food
chain
4) is the competition among the individuals of a species for various requisites from
the environment
40.
The concept that members of a species are reproductive community is
1) typological species concept
2) biological species concept
3) nominalistic species concept
4) mechanism of speciation
41.
Sympatric speciation can be caused by
1) polyploidy
2) geographical isolation
3) rassenkreis
4) peripheral isolation
42.
Which one of the following is post-mating isolating mechanism?
1) Geographical isolation
2) Ecological isolation
3) Mechanical isolation
4) Hybrid sterility
43.
Genetic drift is
1) formation of ring species
2) isolating mechanism
3) genetic revolution to develop new population
4) change in gene frequencies
44.
Which one of the following is not the trend in human development?
1) Bipedalism
2) Stereoscopic binocular vision
3) Increased cranial capacity
4) Bisexualism
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45.
The similarity in genetic materials of humans and African apes is by about
1) 80%
2) 98%
3) 50%
4) 22%
46.
The development of the skills of tool making and cooperative game hunting in Homo
erectus can be attributed to
1) bipedal walking
2) opposable thumb
3) larger brain size
4) binocular eyes
47.
The transition group between Homo erectus and Homo sapiens was that of
1) Sivapithecus
2) Neanderthal
3) Ramapithecus
4) Australopithecus
48.
The tool that should have played a very important part in the evolutionary history of
human species but could not enter into fossil record is
1) mousterian
2) olduman
3) language
4) acheulian
49.
Which one of the following statement is false?
1) Culture is sum total of a store of information and behaviour pattern.
2) Fossil forms do not record the behavioural aspects of a man.
3) Cultural evolution is a very slow and tedious process as compared to biological
evolution.
4) The acquisition of a particular culture depends on the environment in which child is
brought up.
50.
Present day man can efficiently adapt to its environment because of
1) evolution of language
2) development of skills
3) development of culture
4) evolution of extensive technologies
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INDIRA GANDHI NATIONAL OPEN UNIVERSITY
RESPONSE SHEET FOR COMPUTER MARKED
ASSIGNMENT
Enrolment No.
Programme
: BDP
Course Code
: LSE-07
Assignment Code: LSE-07/AST-3/CMA-1/2003
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Address
(Block
Letters)
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Date :
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