Rajasthan Public Service Commission
RAS Syllabus (Main): Botany (Code No.04)
(Plant Morphology, Taxonomy and Economy Botany)
- Pattern of variation in morphology and life history, broad outline of
classification and evolutionary trends in Algae with reference to
Oscillatoria, Chlamydomonas, Volvox, Chara, Vaucharia, Ectocarpus and
Ploysiphonia, Economic importance of algae.
- General characters, board outline of classification, mode of
reproduction and economic importance of fungi with reference to the life
histories of Selerospora, Morchella, Penicillium, Puccinia, Ustilago,
Agaricus and Alternaria.
- General account of structure, reproduction and economic importance of
viruses, Mycoplasma and Bacteria. Introductory knowledge of symptoms, causal
agent, etiology and control measures of following plant diseases. White rust
of crucifers, Green ear disease of Bajra, Loose smut of wheat, Black stem
rust of wheat, Citrus canker, Tobacco mosaic and Little leaf of Brinjal.
- General characters, distribution, alternation of generations,
evolutionary trends in Bryophyta with reference to the life cycles of Riccia,
Marchantia, Porella Anthoceros, Sphagnum and Funaria.
- Salient features of morphology and reproduction of pteridophytes with
reference to Psilotum, Selaginella, Equisctum and Marsilea. Origin and
evolution of stellar system and heterospory in pteridophytes.
- General character, classification, distribution, morphology,
reproduction and economic importance of gymnosperms with reference to the
life histories of Cycas, Pinus and Ephedra.
- Basic principles of the classification of angiosperms; Merits and
demerits of Bentham and Hooker's system of classification: important
Herbaria and Botanical Gardens of India and their role in plant systematic.
Diagnostic characters and economic importance of angiosperms belonging to
following families : Ranunculacae, capparidaceae, caryophyllaceae, Malvaceae,
Rosaceae, Fabaceae, Rutaceae, Apiaceae, Cucurbitaceae, Asteraceae,
Apocynaceae, Asclepiadaceae, Convolvulaceae, Solanaceae, Acanthaceae,
Lamiaceae, Euphorbiaceae, Liliaceae, Arecaceae and Poaceae.
- Meristems - types, organization and functions; Normal and anomalous
secondary growth in Monocot, Dicot and Liana stems; Ecological anatomy.
- Development and structure of male gametophyte and Embryo sac; Double
fertilization, sexual incompatibility; Development, structure and functions
of endosperm and embryo; Experimental embryology; Methods and applications
of anther and embryo culture; Parthenocarpy.
- Origin, Botany, cultivation and improvement of wheat, rice, maize, pearl
millet (Bajra), sugarcane, cotton and groundnut, Plants as sources of fiber,
fuel and timber, beverages, drugs, fatty oils, paper, rubber and
(Cell Biology, Genetics, Evolution, Plant Breading, Plant Physiology and
Biochemistry, Biotechnology and Environment Biology)
- Structure of prokaryotic and eukaryotic cells; Ultra structure and
functions of cell membrane and organelles. Meiosis and its significance;
Linkage and crossing over; Numerical and structural variation in chromosomes
and their evolutionary significance.
- Mendelism and Mendelian ratios (monohybrid, dihybrid and polyhybrid
ratios), gene concept, interaction of genes-Epistasis, Inhibitory factor,
complementary genes; Nucleic acids and their chemistry; Genetic code;
Mutation; types and its significance.
- Origin of life; chemical and organic evolution; evidences, mechanism and
- Principles of plant breeding with special reference to selection,
hybridization and hybrid vigor; Induced mutation, polyploidy and speciation.
- Water relations of a cell, transpiration, mineral nutrition and ion,
transport; Mechanism of photosynthesis; Photorespiration; Aerobic and
- Nitrogen fixation and nitrogen metabolism; protein synthesis; Enzymes;
Physiology of flowering : Photoperiodism and vernalisation; Growth and
growth regulators; Physiology of dormancy and seed germination.
- (a) Biochemistry of carbohydrates and fats; Brief account of secondary
(b) Biotechnology in agri-horticulture, medicines & industries.
- Ecosystem - structure and function; Energy flow; Biosphere reserves;
Environmental pollution, waste and reclamation, sewage disposal and
recycling; Biomass as source of energy, Endangered and endemic taxa and
their conservation with special reference to the plant wealth of Rajasthan.
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