UPSC Mains BOTANY-PAPER-I 2017

32 Questions • 439 Marks • With Detailed Model Answers

1
10 Marks150 Wordsmedium
Describe the following in about 150 words each : Parasexuality in Fungi
BotanyMicrobiology
2
10 Marks150 Wordsmedium
Describe the following in about 150 words each : Phycobiliproteins
BotanyAlgae
3
10 Marks150 Wordshard
Describe the following in about 150 words each : Tetrapolar Heterothallism
BotanyMicrobiology
4
10 Marks150 Wordsmedium
Describe the following in about 150 words each : Salient features of Lichens
BotanyEcology
5
10 Marks150 Wordsmedium
Describe the following in about 150 words each : Peristome
BotanyBryophytes
6
15 Marksmedium
What is meant by Modelling and how does it help in disease forecasting?
BotanyAgriculturePlant Pathology
7
15 Marksmedium
Describe the diplobiontic life cycle of Polysiphonia.
BotanyAlgae
8
20 Markshard
Draw a well-labelled diagram of L.S. of Gnetum ovule and briefly describe its female gametophyte also.
BotanyGymnosperms
9
20 Marksmedium
Describe the symptoms, causal organisms and control measures of white rust of crucifers and red rot of sugarcane.
BotanyAgriculturePlant Pathology
10
15 Markshard
Make a comparison of Hepaticopsida, Anthocerotopsida and Bryopsida classes of Bryophyta with special reference to sporophytes only.
BotanyBryophytes
11
15 Marksmedium
Give an account of distribution of living Gymnosperms in India.
BotanyGymnospermsGeography
12
15 Marksmedium
Give an account of genetic recombination in bacteria.
BotanyMicrobiologyGenetics
13
20 Markshard
Describe the evolution of Stellar System in Pteridophyta with proper diagrams.
BotanyPteridophytes
14
15 Marksmedium
Give an account of different modes of transmission of plant viruses.
BotanyPlant Pathology
15
10 Marks150 Wordsmedium
Embryology in relation to Taxonomy, with examples
BotanyTaxonomy
16
10 Marks150 Wordsmedium
Vavilov's centers of origin in plants
BotanyAgricultureGenetics
17
10 Marks150 Wordsmedium
Symmetry in plants with relation to morphogenesis
BotanyPlant Physiology
18
10 Marks150 Wordsmedium
International Code of Botanical Nomenclature
BotanyTaxonomy
19
10 Marks150 Wordsmedium
Androgenic haploid plants
BotanyPlant Breeding
20
20 Marksmedium
Comment on polyembryony and apomixis in flowering plants.
BotanyPlant Reproduction
21
15 Marksmedium
Write an account of Ethnobotany in relation to modern day drug discovery.
BotanyPharmacology
22
15 Marksmedium
"Clonal micropropagation is useful in Floriculture industry." Explain the process with some suitable examples.
BotanyHorticulture
23
20 Marksmedium
Describe the classification given by Engler and Prantl and comment on its merits and demerits.
BotanyTaxonomy
24
10 Markshard
Developmental details of interxylary phloem
BotanyPlant Anatomy
25
10 Markshard
Anomalous secondary growth in Dracaena stem
BotanyPlant Anatomy
26
10 Marksmedium
Explain the somaclonal variations and their applications in plant breeding.
BotanyPlant Breeding
27
20 Marksmedium
Write an account of the following families with reference to floral diagram and floral formula. Give botanical names of four important plant species belonging to each of the families and specify their uses : Cucurbitaceae
BotanyTaxonomy
28
20 Marksmedium
Write an account of the following families with reference to floral diagram and floral formula. Give botanical names of four important plant species belonging to each of the families and specify their uses : Solanaceae
BotanyTaxonomy
29
20 Marksmedium
Write an account of the following families with reference to floral diagram and floral formula. Give botanical names of four important plant species belonging to each of the families and specify their uses : Liliaceae
BotanyTaxonomy
30
15 Marksmedium
Describe the plants used as sources of fibres, dyes and resins with suitable examples.
BotanyEconomic Botany
31
7 Marksmedium
Cytoplasmic hybrids
BotanyPlant Breeding
32
7 Marksmedium
Chemotaxonomy
BotanyTaxonomyChemistry