Zoology optional paper 2019









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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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Anthropology test week 5

Week-5 Instructions:- There are SEVEN 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) a) Aging and Growth b) Epidemiological Anthropology c) Turner syndrome d) rDNA technology e) Biochemical basis of ABO blood group Q:-2 (a) Define Mendelian character. Describe the experiment done by Mendel and their outcomes. (20) (b) Discuss the factors affecting growth and development among human population. (15) (c) Discuss the hormonal basis of female reproductive cycle. (15) Q:-3(a) Describe polymorphism in human population at genetic level. (10) (b) Discuss the response and adaptations of human population towards various ecological habitats. (20) (c) Give any 4 diseases caus...
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Questions for 20 July Zoology

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)
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Questions For 6 July zoology

Instructions · All questions are compulsory. · Adhere to world limits wherever specified. · Draw neat and well labelled diagrams. No beautification required. · Don’t use colour pens only pencil colour if you are an extraordinary student. · Try to finish all questions within 2 hours in written. · Answers will be reviewed every day at 9 pm. Q:-1 Discuss the characteristic features of phylum Protozoa. Classify the phylum upto subclasses.(20) Q:-2 Discuss the locomotion in protozoans. Add note on various types of locomotive organs. (20) Q:-3What is protein targeting? Describe the retrograde mode of transportation. (10) Q:-4 What is the protein folding? How it is regulated? Briefly discuss its significance. (15) Q:-5 Discuss various modes of Nutrition in protozoans. (10) Q:-6 Comment on the reproduction in protozoa. Discuss various types of parthenogenesis. (15) Q:-7 Compare the process of O- linked glycosylation and N linked glyco...
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