Questions for 11 August Zoology

Q:-1 Describe navigation in fishes and birds. Explain its urge and control also. (20)

Q:-2 What is vitamin? With suitable example describe different types of it. Describe the biosynthesis of Vitamin - D. (20)

Q:-3 Define co-enzymes. How they are regulating the activity of enzymes? Describe with suitable examples. (15)

Q:-4 What is FAP? How it is controlling development in various animals? (10)

Q:-5 Describe various types of Biological clock. (20)

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CANAL SYSTEM IN Porifera

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Canal system in Porifera (sponges) Body of all sponges is the perforated by large number of apertures through which water enters Inside body and flows through a system of criss-crossing canals collectively forming the canal system which is a characteristic feature of poriferans. Following types of canal systems are found in sponges: Ascon type, with flagellated spongocoel Sycon type, with flagellated radial canals Leucon type, with flagellated chambers Rhagon type, with conical shape and broad base ASCON TYPE This is the simplest type of canal system and is found in  Leucosolenia  and other homocoela. Ostia are present on the surface of body and lead directly into the spongocoel, which is lined by flagellated choanocyte cells. Spongocoel opens to the outside through a narrow circular opening, the  osculum  located at the distal free end of the sponge body. Water enters through ostia into spongocoel and goes out of body through the  osculum . SYCO...
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Question for 03 August Zoology

Q:-1 Elucidate the adaptations of animal living in fresh water habitats. (10) Q:-2 What is IUCN? How code of nomenclature evolved? Explain the role of modern tools and computational analysis in nomenclature. (20) Q:-3 Define ecosystem. Give its various components. How they are operating. (15) Q:-4 What is ecosystem services? Why is there a need of legislative verdict on it.? Discuss. (20)
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Invertebrate Zoology By Brusca and Brusca

"Invertebrates" 2nd edition presents a modern survey of the 34 animal phyla (plus the Protista) and serves as both a college course text and a reference on invertebrate biology. It is organized around the themes of bauplans (body plans) and evolution (phylogenetics). Detailed classifications, phylogenetic trees, and references for all phyla are provided. The text is accompanied by detailed line drawings and - new to this edition - four-colour photographs. Other key changes from the 1st edition (1990) include: the incorporation of all the new developments in phylogenetics, developmental biology and molecular genetics; major changes at the highest levels among the invertebrates; three phyla that appeared in the original book Pentastomida, Pogonophora and Vestimentifera no longer exist, and an entire new phylum, Cycliophora, has been erected. Moreover, this edition discusses recent work in molecular systematics, and there is a large new section on "Kingdom Protista" (...
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Questions for 26 July Zoology

Q:-1 Describe the evolution of Tetrapods. Give the classification of Amphibian with suitable examples. (20) Q:-2 Compare the paedomorphosis and neoteny. How neoteny played an role in human evolution. (15) Q:-3 Discuss the various strategies of parental care in amphibians. Explain its significance briefly. (20) Q:-4 What is split gene ? Discuss the origin of introns. Comment on 2R hypothesis. (15) Q:-5 What is imprinting? Describe how Igf2's imprinting operate in human. Discuss the role of small RNA molecules in regulating gene expressions. (20) Q:-6 Briefly explain Wobble hypothesis with examples. Enlist general features of genetic code with examples. (10)
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