Zoology IAS Paper 2 UPSC 2014 with Solutions

Zoology Paper 2 UPSC 2014 - Question Paper with Solutions 

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SECTION-A

Zoology 1a Characterize with suitable examples, the following features of genetic code:

Zoology 1a i Degeneracy. (IAS 2014, 5 Marks)

Zoology 1a ii Universality of genetic code and add a note on Wobble hypothesis. (IAS 2014, 5 Marks)

Zoology 1b Illustrate and narrate structure of F1 -F0 particles of- mitochondria. How do they facilitate movement of protons across the mitochondrial membrane leading to ATP generation? (IAS 2014, 10 Marks)

Zoology 1c Give an illustrated account of Lac Operon in E.Coli. (IAS 2014, 10 Marks)

Zoology 1d Define and differentiate between Genomics and Proteomics. Add a note on their biomedical applications. (IAS 2014, 10 Marks)

Zoology 1e Complete the table given below by inserting 0, 1, 1/2 or 1/4 for the probability of each genotype of progeny for each type of mating. Give reasons. (IAS 2014, 10 Marks)

Zoology 2a Describe the molecular basis of the following inherited diseases and their manifestations in humans: (IAS 2014, 15 Marks)

Zoology 2a i Cystic fibrosis 

Zoology 2a ii Sickle cell anemia 

Zoology 2a iii Hunting chorea 

Zoology 2b Identify the five important evolutionary changes led to evolution of modern Homo sapiens from the ancestral stock during various Geological era and epochs. (IAS 2014, 15 Marks)

Zoology 2c Compare the events during mitotic and meiotic cell cycles. Add a note on. role of stage-specific macromolecules and enzymes in such cycles. (IAS 2014, 20 Marks)

Zoology 3a Describe the process of DNA finger printing and indicate which of the following is used in DNA finger printing: (IAS 2014, 15 Marks)

Zoology 3a i Palindromic sequences of DNA

Zoology 3a ii V.N.T.R

Zoology 3a iii Shine Dalgrano sequences

Zoology 3a iv TATA boxes

Zoology 3b Give an illustrated account of evolution of horse, mentioning the relevant geological time periods. (IAS 2014, 15 Marks)

Zoology 3c State and explain Hardy Weinberg's law of genetic equilibrium. What are its limitations? Calculate the allele frequencies of LM and LN genes from the following blood group data of a population on the basis of this law. (IAS 2014, 20 Marks)

Zoology 4a Give an illustrated account of protein synthesis in eukaryotic cell. Compare this with similar events in a prokaryotic Add a note on the mechanisms that lead to migration of such proteins in the lumen of endoplasmic reticulum. (IAS 2014, 20 Marks)

Zoology 4b What are the various vectors used in genetic engineering? Write and compare the protocol for each. (IAS 2014, 15 Marks)

Zoology 4c Define continental drift. Explain the processes. By which this has impacted upon the geographical distribution of fauna restricting it to certain regions only. (IAS 2014, 15 Marks)

SECTION-B

Zoology 5a What are nucleic acids? Describe the structure and functions of various types of RNAs. (IAS 2014, 10 Marks)

Zoology 5b Name the enzymes and hormones released by liver and pancreas. Discuss their functions in digestion of food and maintenance of blood glucose balance. (IAS 2014, 10 Marks)

Zoology 5c What is I.V.F.? Make a flow chart of steps in I.V.F Add a note on its applications. (IAS 2014, 10 Marks)

Zoology 5d Give evidence in favour of mitochondrial theory of aging. What are its limitations? (IAS 2014, 10 Marks)

Zoology 5e What are vitamins? Name and give the functions of water-soluble vitamins Tabulate the diseases that occur in humans due to hypo and hypervitaminosis. (IAS 2014, 10 Marks)

Zoology 6a What do you mean by neurotransmitters? Describe adrenergic, cholinergic-and peptidergic neurotransmitters and write an illustrated account of their, functions in synaptic transmission. (IAS 2014, 15 Marks)

Zoology 6b Describe the process of formation of three germinal layers. Draw sequential diagrams and narratives to show formation of eye in frog or chick. (IAS 2014, 15 Marks)

Zoology 6c What is haematopoiesis? Indicate the site and the stages by which erythrocytes, various types of leycocyte’s and platelets are formed. Which chemical factor(s) coordinate and control these events? (IAS 2014, 20 Marks)

Zoology 7a What is paedomorphosis? How does it differ from Neoteny? Add a note on its significance in evolution of Homo sapiens. (IAS 2014, 15 Marks)

Zoology 7b What are immunoglobulins? Describe the structure of IgG and add a note on its diversity. (IAS 2014, 20 Marks)

Zoology 7c What do you mean by anticoagulant? Describe the structure and functions of natural and synthetic anticoagulants. (IAS 2014, 15 Marks)

Zoology 8a Haeckel propounded the concept (law), “Ontogeny recapitulates phylogeny”. Give evidence and examples that negates it or favours it. (IAS 2014, 15 Marks)

Zoology 8b What is apoptosis? What are its stages? Write about the molecular mechanism of apoptosis. (IAS 2014, 20 Marks)

Zoology 8c What is cladistics? Discuss its applications in understanding the evolution of different life forms and phylogeny. (IAS 2014, 15 Marks)