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State Level Eligibility Test

SLET: Life Sciences

Code No. : 04
Subject : LIFE SCIENCES
PAPER III

15. Arthropods and vectors of human diseases (mosquitoes, lice, flies and ticks); Mode of transmission of pathogens by vectors; Chemical, biological and environmental control of anthropod vectors; Biology and control of chief insect pests of agricultural importance; Plant host-insect interaction, insect pest management; useful insects: Silkworm.

16. The law of DNA constancy and C-value paradox; Numerical, and structural changes in chromosomes; Molecular basis of spontaneous and induced mutations and their role in evolution; Environmental mutagenesis and toxicity testing; Population genetics.

17. Structure of pro- and eukaryotic cells; Membrane structure and function; Intracellular compartments, protein sorting, secretory and endocytic pathways; Cytoskeleton; Nucleus; Mitochondria and chloroplasts and their generic organisation; cell cycle; Structure and organisation of chromatin, polytene and lambrush chromosomes; Dosage compensation and sex determination and sex-linked inheritance.

18. Interactions between environment and biota; Concept of habitat and ecological niches; Limiting factors; Energy flow, food chain, food web and trophic levels; Ecological pyramids and
recycling, Biotic community-concept, structure, dominance, fluctuation and succession; N.P.C.
and S cycles in nature.

19. Ecosystem dynamics and management; Stability and complexity of ecosystems; Speciation and extinctions; Environmental impact assessment; Principles of conservation; Conservation strategies; Sustainable development.

20. Physico-chemical properties of water; Kinds of aquatic habitats (fresh water and marine); Distribution of and impact of environmental factors on the aquatic biota; Productivity, mineral cycles and biodegradation in different aquatic ecosystems; Fish and Fisheries of India with respect to the management of estuarine, coastal water systems and man-made reservoirs; Biology and ecology of reservoirs.