IFS Botany 2000
Paper-I
Section A
1. Answer any four of the following: (Your answers should not exceed 150 words for each sub-section)
a. Explain the following:
I. Mollicute
II. Cybrids
III. Viroids
IV. Elicitors
b. Distinguish the following:
I. Biodegradation and bioremediation
II. Disease and disorder
III. Macrandrous and Nanandrous
IV. Protostele and siphonostele
c. Explain the following:
I. Oncogenesis
II. Bioleaching
III. Crozier
IV. Polarity
d. Give a brief account of the following:
I. Biopesticides
II. Suspension cell culture
III. Archesporium
IV. Rhizophore.
e. Write short notes on the following:
I. Trabaculae
II. Ligule
III. Sorus
IV. Inducium
2. Answer the following questions
a. Mention the symptoms, causal organism, mode of infection and control measures of:
I. Stripe disease of barley
II. Citrus canker
b. Discuss the molecular basis of host-parasite interaction.
3. Answer the following questions
a. Describe the process of liquid waste treatment by micro-organisms.
b. Describe the role of Phytotoxin pathogenesis in plant
4. Describe the following
a. Totipotency of plant cells
b. Economic importance of marine algae
c. Structure of antheridiophore in Funaria
d. Gametophytes in Selaginella
Section B
1. Answer any four of the following: (Your answer should not exceed 150 words for each of the sub-section)
a. Distinguish the following
I. Perigenous and Mesogenous Stomata
II. Phyllospermous and Stachyspennous
III. Axile and Parietal placentation
IV. Synergid and Egg cells
b. Describe the following
I. Distribution of cycads in India
II. NPC-system
III. Pollenia
IV. Stamens in Magnoliaceae
c. Describe the following
I. Ovule of Taxus
II. Male organs of Williamsonia
III. Female inflorescence in Onetum
IV. Ovule bearing organs of Cycadofilicales
d. Describe the following
I. Beta taxonomy
II. Stamens in Leguminosae
III. Inflorescence in Euphorbiaceae
IV. Carpels in Ranunculaceae
e. Describe the following:
I. Floral formula of Apiaceae
II. Fruit of wheat
III. Distribution of Welwitschia
IV. Cytomixis
2. Answer the following:
a. Compare the characters of Cycadales and Bennettitales.
b. Describe different types of Endosperms.
c. Adventive embryogenesis
d. Describe the male flower of Ephedra.
3. Answer of following:
a. Compare the floral structure of
I. Arecaceae and Liliaceae
II. Rubiaceae and Verbenaceae.
b. Describe the floral characteristics of orchids.
c. Economic importance of Dipteocarpaceae.
d. Discuss the importance of Herbarium.
4. Answer the following questions
a. Mention the botanical name, family and the plant parts used of the following:
I. Rice
II. Lentil
III. Walnut
IV. Heeng
V. Clove
VI. Fennal
VII. Ashwagandh
VIII. Cocaine
IX. Mamla hemp
X. Coir
b. Describe a natural system of classification up to the rank of orders of flowering plants.