PPSC Previous Papers: Download Punjab PSC Civil Services & other exams previous year question papers. Get the PPSC old solved model. Free previous years papers for PCS IAS Punjab Bank PO Govt Jobs Papers with Questions and Answers, Previous Years PCS Question Papers with Answers. Home PUNJAB PCS PRELIMS PAPER 1 QUESTION PAPER AND ANSWER KEY. IAS NETWORK, July 24, domarepthestten.ga Page 1 /
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GENERAL STUDIES. Question Paper: Punjab PCS GS1 Question Paper ( Set- D).pdf. Answer Key: Punjab PCS GS Answer domarepthestten.ga Punjab PCS Mains Question Papers General Studies Paper I GS I General Studies Paper II GS II General Studies Paper III GS III General. PPSC (Punjab Public Service Commission) Exam was held on 20th May Most of Click Here to Download PPSC Question Paper PDF.
Differentiation, cellular senescence. Genetics, Molecular Biology and Biotechnology. Concept of gene and allelomorph. Linkage, crossing over and gene mapping. Structural and numerical changes in chromosomes and gene mutations. Sex determination and differentiation.
Structure and synthesis of nucleic acids and proteins. Genetic code. Regulation of gene expression. Genetic engineering and crop improvement. Protoplast, cell, tissue and organ cultures. Somatic hybridization. Biofertilizers and biopesticides. Biotechnology in agri- horticulture, medicine and industry.
Tissue Systems. Plant Diversity and Systematics. Principles of nomenclature, classification and identification of plants. Modern approaches in plant taxonomy.
Recent classification of living organisms into three groups bacteria, archaea and eukarya. Plant Physiology. Mineral nutrition. Nitrogen metabolism. Enzymes and coenzymes.
Dynamics of growth, growth movements, growth substances, photomorphogenesis. Secondary metabolites. Isotopes in biological studies.
Physiology of flowering. Methods of Reproduction and Seed Biology. Pollination and fertilization. Sexual incompatibility. Development, structure, dormancy and germination of seed. Plant Pathology.
Factors affecting infection host factors, pathogen factors, biotic factors like rhizosphere and phyllosphere organisms. Chemical, biological and genetic methods of disease control including transgenic plants.
Plant and Environment. Ecological adaptation. Types of vegetational zones and forests of India. Deforestation, afforestation, social forestry and plant introduction.
Soil erosion, wasteland, reclamation. Environmental pollution and its control including phytoremediation , Bioindicators, Global warming.
Page 4 of 9. Biodiversity, Plant Genetic Resources.
Endangered, threatened and endemic taxa. Plants as sources of food, fodder, forage, fibres, oils, drugs, wood and timber, paper, rubber, beverages, spices, essential oils and resins, gums, dyes, insecticides, pesticides and ornamentation. Biomass as a source of energy. Origin of Life and Evolution. Theories of organic evolution, molecular basis of evolution.
Periodic trends of atomic radii, ionic radii, ionisation potential, electron affinity and electronegativity in the periodic table. Shapes of molecules, bond order, bond length, V. The concept of hybridization and shapes of molecules and ions. Balancing of equations for oxidation and reduction reactions. Hard and soft acids and bases. HSAB principle, relative strengths of acids and bases and the effect of substituents and solvents on their strength.
Special emphasis on solutions of alkali and alkaline earth metals in liquid ammonia. Undergraduate Courses. Higher Secondry Courses. Defense Exams. Language Series. Others Popular Exams.
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