1Medium10 marks
Biological species concept
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53 questions from the UPSC 2014 examination.
53 questions
Biological species concept
Formation of Petrifaction.
Describe in detail Hutchinson's system of classification and compare it with the classification system of Engler and Prantl.
V.S. of apothecium of Peziza.
What makes the ribosomal RNA gene (rRNA) suitable for phylogenetic studies?
Role of fungi in agriculture and medicine.
Fructifications in Fungi.
Cone of Cycadeoidea.
With the help of suitable diagrams describe the evolution of sporophyte in Bryophytes.
When the glucose-grown 'E. Coli' are transferred to the medium containing lactose, what will be the fate of 'Lac Operon'?
In what way does Mendel's law of inheritance (dominance) differ from incomplete dominance?
Energy plantations.
Does the process of nitrification synthesize ATP, and how is this energy conserved?
Zinc deficiency in crop plants
Embryo development in Arabidopsis.
Tikka disease of groundnut.
Discuss the role of tissue culture in crop improvement.
Explain how proton-motive force drives the synthesis of ATP.
Describe in detail the structure and chemical composition of ribosomes.
What are 'symplasmids'? Mention their role in root nodulation and N2-fixation in the leguminous plants.
Give a brief note on the concept of sustainable development.
Male thallus with antheridiophore of Marchantia.
IUCN classification of extinction risks
Application of radiomimetic chemicals
Explain how air and water pollution affect the agro-ecosystems.
What do you understand by the 'cell cycle'? Mention the important proteins that control the cell cycle.
How are plant protoplasts isolated and fused?
V.S. of leaf of Welwitschia.
Give an experimental evidence to demonstrate that DNA is the genetic material.
Use of FISH technique in tracking the target organisms
T.S. of cyathium of Euphorbia.
Briefly describe the various types of chromosomal aberrations.
Why do chromosomal aberrations happen?
T.S. of coralloid root of Cycas.
Selection of cytoplasmic-genetic male sterility in the development of hybrid varieties
Describe the role of national and international organisations established for germplasm conservation.
Define 'biodiversity' and discuss the measures to conserve it.
Importance of typification in plant nomenclature.
Apical dominance
What is seed germination? Define normal and abnormal seedlings.
Position of monocots in APG classification.
Tests of significance in biology
Discuss about the physiology of parasitism.
What are molecular probes? Mention their applications in biology.
How would you develop improved variety of basmati rice for organic farming conditions?
Reproductive organs in Chara.
Give an account of pigments in Algae.
V.S. of sporophyte of Polysiphonia.
Relevance of numerical taxonomy.
V.L.S. of Marsilea sporocarp.
Plant quarantine.
Describe the roles played by mesophyll cells and bundle sheath cells in C4 pathway of CO2 fixation.
Mechanism of drought resistance