Botany (Code No. 04)

Botany (Code No. 04)
1. Origin of Life : Basic ideas.
2. Biological Evolution : General account of chemical and biological evolution and
mechanism of speciation.
3. Cell Biology : Cell structure and functions of cell organelles; structure and
composition of cell wall and cell membrane.
Mitosis and meiosis and their significance.
4. Plant Anatomy: Origin, development, structure and function of primary and
secondary tissues.
5. Genetics and Plant Breeding : Mendel's Laws of inheritance, concept of gene and
genetic code; physical and chemical basis of heredity; Linkage, crossing over and sex
determination; Mutation, polyploidy, hybrid vigour and their role in crop
improvement.
6. Plant Diversity : Structure and evolutionary trends in plant forms :
(a) Algae to angiosperms.
(b) Ultra-structure, reproduction and economic importance of viruses, Mycoplasma
and Bacteria.
(c) Structure, reproduction and economic importance of Lichens.
7. Plant systematics : International code of Botanical Nomenclature (ICBN); Principles
and important rules of (Validity, Effectively and Priority). Herbaria and Botanical
Gardens and their role in plant systematics.
Plant taxonomy - a synthetic discipline.
8. Plant Physiology : Water relations, Mineral nutrition, Photosynthesis, Respiration,
Nitrogen metabolism, Enzymes, Plant growth regulators, Physiology of flowering,
Secondary metabolites - a brief account.
9. Reproductive Biology : Pollination, fertilization, sexual incompatibility;
Development, structure dormancy and germination of seed.
10. Plant Pathology : Symptoms, etiology and control measures of following diseases :
White rusts of crucifers, Early blight of potato, Black rust of wheat, Loose smut of
wheat, Red rot of sugarcane, Tikka disease of groundnut.
11. Environmental Biology : Structure and function of Ecosystem; Ecological
adaptations; Climate, Vegetation and Phytogeographical regions of India. National
parks and wild life sanctuaries - Deforestation, afforestation and social forestry.
Environmental pollution, ecological indicators, soil erosion and waste land
reclamation.
12. Botany - A human concern :
(a) Germ plasm resources and conservation.
(b) Endangered, threatened and endemic taxa.
(c) Cell, tissue, organ and protoplast cultures in micropropagation and genetic diversity.
(d) Biotechnology in Agri-horticulture, Medicine and Industry.
(e) Plants as sources of food, fibres, fatty oils, drugs, Fuels and timbers, paper, rubber
beverages, spices, resins, gums, dyes, insecticides, pesticides and ornamentation.