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State Level Eligibility Test

SLET: Life Sciences

Code No. : 04
Subject : LIFE SCIENCES
PAPER III

1. Principles of Taxonomy as applied to the systematics and classification of plant kingdom: Taxonomic structure; Biosystematics; Plant geography; Floristics.

2. Patterns of variation in morphology and life history in plants; Broad outlines of classification and evolutionary trends among algae, fungi, bryophytes and pteridophytes; Principles of palaeobotany; Economic importance of algae, fungi and lichens.

3. Comparative anatomy and developmental morphology of gymnosperms and angiosperms; Histochemical and ultrastructural aspects of development; Differentiation and morphogenesis.

4. Androgenesis and gynogenesis; Breeding systems; Pollination biology; Structural and functional aspects of pollen and pistil; Male sterility; Self and inter-specific incompatibility; Fertilization; Embryo and seed development.

5. Plants and civilization; Centres of origin and gene diversity; Botany, utilization, cultivation and improvement of plants of food, drug, fibre and industrial values; Unexploited plants of potential economic value; Plants as a source of renewable energy; Genetic resources and their conservation.

6. Water Relations: Mineral nutrition; Photosynthesis and photorespiration; Nitrogen, phosphorous and sulphur metabolism; Stomatal physiology; Source and sink relationship.

7. Physiology and biochemistry of seed dormancy and germination; Hormonal regulation of growth and development; Photoregulation: Growth responses, Physiology of flowering: Senescence.

8. Principles of plant breeding; Important conventional methods of breeding of self and cross pollinated and vegetatively propagated crops; Non conventional methods; Polyploidy: Genetic variability; Plant diseases and defensive mechanisms.