upsc.gov.in Botany Question Paper : Indian Forest Service Main Exam
Organization : Union Public Service Commission
Exam : Indian Forest Service Main Exam
Subject : Botany
Document Type : Previous Question Papers
Location : India
Website : upsc.gov.in
Download Model/Sample Question Paper :
2011 :
Botany Paper I : https://www.pdfquestion.in/uploads/upsc.gov.in/7146-2011BOTANY_I.pdf
Botany Paper II : https://www.pdfquestion.in/uploads/upsc.gov.in/7146-2011BOTANY_II.pdf
2012 :
Botany Paper I : https://www.pdfquestion.in/uploads/upsc.gov.in/7146-2012BOTANY_I.pdf
Botany Paper II : https://www.pdfquestion.in/uploads/upsc.gov.in/7146-2012BOTANY_II.pdf
2013 :
Botany Paper I : https://www.pdfquestion.in/uploads/upsc.gov.in/7146-2013BOTANY-I.pdf
Botany Paper II : https://www.pdfquestion.in/uploads/upsc.gov.in/7146-2013BOTANY-II.pdf
2014 :
Botany Paper I : https://www.pdfquestion.in/uploads/upsc.gov.in/7146-2014Botant-1.pdf
Botany Paper II : https://www.pdfquestion.in/uploads/upsc.gov.in/7146-2014Botany-2.pdf
Botany Question Paper
Time Allowed : Three Hours
Maximum Marks :200
Related : UPSC Indian Forest Service Main Exam Animal Husbandry & Veterinary Science Question Paper : www.pdfquestion.in/7145.html
INSTRUCTIONS :
Candidates should attempt Questions No. 1 and 5 which are compulsory, and any THREE of the remaining questions, selecting at least ONE question from each Section. The number of marks carried by each question is indicated at the end of the question. Answers must be written in’ENGLISH only.
Section A
1. Answer any four of the following in not more than 200 words each [(i) and (ii) together]
Write critical notes on the following :
(i) Phyllody
(ii) Use of cybrids in plant improvement
(b) Write short notes on the following :
(i) Dikaryotization in Ustilago
(ii) Androgenic haploids
Differentiate between the following :
(i) Chlorosis and Necrosis
(ii) Polarity and Symmetry
Write about the following :
(i) Defense structures in plants against the attacking pathogen
(ii) Bacterial cell wall
Write critical notes on the following :
(i) Flagellar apparatus in algae
(ii) Evolutionary significance of heterospory
“The coexistence of host plants and their pathogens in nature indicates that the two have evolved together.” Elaborate the above statement with examples.
“Somatic hybrid cell lines can be developed by fusing the protoplasts from two different sources.” How will you distinguish the somatic hybrid lines from the parental cells? ‘
Give an account of sexual fruiting bodies in ascornycetes.
“There is progressive sterilization of sporogenous tissue in bryophytes.” Critically examine this statement and give examples for the same.
Give an account of microorganisms involved in biological nitr0gen fixation.
What is heterothallisrn? Give an account of different types of it in fungi.
Section B
(a) Give brief accounts’of the following :
(i) Male germ unit
(ii) Types of stomata in dicotyledons
(b) Distinguish between the following :
(i) Fertilization in Ephedra and Gnetum
(ii) Leaf anatomy of C3 and C 4 plants
(c) Comment critically on the following :
(i) Why are ethnobotanical studies important in India?
(ii) Floral characters in Asclepiadaceae
(d) Write short notes on the following :
(i) Apomixis and its economic importance
(ii) Archaeopteris
(e) Write short notes on the following :
(i) Botanical gardens and their utility
(ii) Composition and products of latex
Draw scientifically accurate diagrams of the following and label the parts correctly : 10X4=40
(a) T8 coralloid root of Cycas
(b) Ray and disc florets of Helianthus annuus and their ?oral diagrams
(c) Floral (reproductive fructi?cation] morphology and LS of ovule of Cycadeoidea [Bennettitales]
(d) LS of caryopsis of any cereal
7. Write short notes on the following : 10X4=4O
(a) Economic importance of Brassicaceae and Solanaceae
(b) Distinguishing features of successive cambia and interxylary phloem
(c) Pollination by birds and bats
(d) Embryo development in Paeonia
8. (a) Give a comparative account of the systems of classi?cation of angiosperms proposed by Hutchinson and Takhtajan. 20
(b) Give the botanical name, famin and part used of each of the following : 2X10=20
(i) Sesame
(ii) Avocado
(iii) Cassava
(iv) Flax
(v) Saffron
(vi) Cocoa
(vii) Cedar
(viii) Annatto
(ix) Pyrethrum
(x) Belladonna
Section c
1. Write short notes on any four of the following in not more than 150 words each 10X4_=40
(a) Role of cervix in reproductive processes
(b) Chemical composition of spermatozoa
(c) Genetic consequences of chromosomal aberrations
(d) Milk substitute and milk replace-r
(e) Significance of selection in a closed population
2. (a) What are the methods of preserving semen? Discuss. 15
(b) Discuss the detection of oestrus and time of insemination for better conception. 15
(c) Enlist the factors affecting semen quality. 10
3 (a) Discuss why heterosis is better than inbreeding in keeping good animal health and production. 20
(b) What factors would you consider in selecting dairy animal for starting a farm? 20
4 (a) Discuss the importance of calf starter in daily animals.
10 (b) Write the feeding schedule for calves at three to six months age group.
15 (c) What are the forces changing the gene frequency in population? 15