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f441ilf DETACHABLE
IndIan Forest Seivice Examinatir

BOTANY
Paper I
ITime Allowed: Three Hours IIMaximum Marks: 200 I
QUESTION PAPER SPECIFIC INSTRUCTIONS
.i
Please read each of the following instructions carefully before attempting questions.
There are EIGHT questions in all, out of which FIVE are to be attempted.
Question no. 1 5 are compulsory. Out of the remaining SIX questions, THREE are to be attempted

selecting at least ONE question from each of the two Sections A and B.
Attempts ofquestions shall be counted in chronological order. Unless struck off, attempt ofa question
shallbecountedeven ifattemptedpartly. Anypageorportionofthe page leftblankintheanswerbook
must be clearly struck off.

I
All questions carry equal marks. The number ofmarks carried by a question/part is indicated against it.
Answers must be written in ENGLISH only.
Neat sketches may be drawn, wherever required.



SECTION
1. Answer the following keeping your answers brief and to the point:
Differentiate between the following:
Holocarpic and Eucarpic fungi
Eusporangiate and Leptosporangiate ferns

Write short notes on the following 8
Myxomycete bearing some characters similar to animals but placed under fungi
Soil solarization and its use to control nematodes in soil

Write critical notes on the following: 8
Phytoanticipins with suitable examples
Different types ofprothallus in ferns
Write about the following: 8
Structure and functions of scales, gemma and elaters of Bryophytes
Algae as Biofertilizer

l.(e)Discuss briefly the following: 8
Importance of Heterospory l0
Biopesticides
2. Discuss briefly the following: 10x4=40
Evolution of sexual method of reproduction in algae 10
Endospore formation in bacteria and its significance 10
Economic importance and distribution of Bryophytes 10
Diversity and distribution of Indian Pteridophytes 10

3. Write a brief account of the following:
Lytic and Lysogenic cycle
3.(b)Dissemination of pathogens by insects
3.(c)Morphological nature of sporocarp ofMarsilea
3.(d)Causal organisms, symptoms and control of wheat rusts in India
Explain the role of arbuscular mycorrhizal fungi as biofertilizer.
Discuss critically the range of sporophyte in Bryophytes.
Comment critically on integrated disease management.

5. Answer the following keeping your answers brief and to the point:
5.(a)Distinguish between the following
Totipotency and Pluripotency
5.(a)(ii)Somatic embryogenesis and Organogenesis
Write short notcs on the following:
5.(b)(i)Cycadofilicales
Methods ofprotoplast fusion
Comment critically on the following
Advanced features of Asteraceae
Double fertilization and triple fusion in Angiosperms
Write short notes on the following:
5.(d)(i)Ethnobotany
5.(d)(ii)Magnoliaceae -Primitive characters
Make a comparison ofthe following:
5.(e)(i)Long shoot and dwarf shoot of Pinus
Inflorescence ofApiaceae and Euphorbiaceae

6. Draw scientifically accurate diagrams of the following and label the parts:
6.(a)TS. ofany stem showing interxylary and intraxylary phloem
T.S. of coralloid root of Cycas
Typical embryo sac ofdicots
Floral diagram of Solanaceae
7. Write brief and critical notes on the following:
7.(a)Embryo development in a dicotyledonous plant
7.(b)Affinities ofGymnospenns with Angiosperms
Manoxylic and Pycnoxylic wood
Energy plantation

8.(a)Write the botanical name, family and part used of each ofthe following:
8.(a)(i)Carrot
8.(a)(ii)turmeric
Belladona
8.(a)(iv)Clove
8.(a)(v)Castor
8.(a)(vi)Mint
Finger millet
Eggplant
Areca nut
Jasmine

8.(b)"Origin and evolution of cultivated plants are much more complex and intricated than was
originally conceived by Vavilov."Substantiate the above statement with examples and recent developments.