zoology Arena

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Q:-1 Describe the general characters of Phylum Echinodermata and classify the phylum upto subclasses. (20) Q:-2 What is repressor? Explain the trp operon and compare it with lac operon. (20) Q:-3 What is chromatin modification? How it is mediated? Discuss its role in gene regulation. (15) Q:-4 Describe the various larval forms in phylum Echinodermata. Explain their significance also. (20) Q:-5 What is water vascular system? Briefly explain the mechanism of respiration in Echinodermata. (15)

Q:-1Discuss the general features and life history of Pila with suitable diagrams. (20) Q:-2 Explain the process of torsion and detorsion in Gastropods. Discuss its significance and implications on physiology. (15) Q:-3 Compare the life history of Sepia and Lamellidens. (20) Q:-4 With diagrams explain the process of whole animal cloning. Describe various methods of making hybrid organisms. (15) Q:-5 What is transgenic organism? Discuss its significance in modern day society. (15)

Q:-1What is restriction enzymes? Discuss its various types and explain its nomenclature by taking suitable examples. (15) Q:-2 Give the general characteristics of phylum Mollusca and classify the phylum upto sub classes. (20) Q:-3 Comment on feeding habit of Mollusca. How it is different from Feeding habit of Echinodermata. (20) Q:-4 What is genetic library? Compare between cDNA and DNA library. (10) Q:-5 Explain the process of making the recombinant DNA. Describe the various types of DNA vectors and explain which one is better and why? (15) Q:-6 Explain the respiration process in classes of Mollusca with suitable diagrams. (15)

Week 2 Instructions:- There are Eight questions divided in Two sections. All questions are compulsory. Adhere to world limit wherever specified. The number of marks carried by a question is indicated against it. Paper - I Q:-1 Write notes on the following in about 150 words each: (10X5 = 50) 1) Secondary structure of DNA 2) Rhodesian man 3) Lower palaeolithic Culture 4) Chromosome walking 5) Javanicus Q:-2 Discuss the locomotive behaviour of prehistoric human primates and state how does it help in understanding the structural and functional correlations of their forelimb structure. 20 Q:-3 Comment on mendelian principles and their applications in genetic analysis. (15) Q:-4 Mutation is the hidden force behind evolution, justify the statement with suitable examples and discuss about sources of mutation. (20)                                Paper - II Q:-1 Write notes on the follow...

Q:-1 What is metamorphosis? Give its various types and Discuss the hormonal control of metamorphosis in Insects. (20) Q:-2 Define pedigree. Explain its role and significance in modern day medicines. (15) Q:-3 What is sex linked and sex influenced characters? Explain with examples. (10) Q:-4 Give any 4 Common hereditary disorders. Explain inheritance pattern of one of them through pedigree chart. (10) Q:-5 Compare the social organization in Termites and honey bees. Briefly discuss the communication ways in colony of Apis. (20)