Name of the University : Netaji Subhas Open University
Name of the Exam : BDP Term End Exam
Document Type : Sample Question Paper
Year: 2016
Subject: Zoology

Website : http://www.wbnsou.ac.in/student_zone...c2015-June2016
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BDP Term End Zoology Question Paper :
1st Paper : Animal Diversity-I (Non-chordate )
Time : 2 hours
Full Marks : 50

1. Answer any two questions : 10 × 2 = 20
(a) Write the significance of the name Hemichordata. Discuss the systematic position of Balanoglossus citing similarities and dissimilarities with the phyla Echinodermata and Chordata. 2 + 6 + 2
(b) Write four external and four internal features of molluscs. Classify the phylum up to classes with characters and examples. 4 + 6
(c) What do you mean by pinacoderm and choanoderm layers of the sponges ? Write an account of different cell types and cell arrangements in the body of sponges with suitable diagrams. 4 + 6
(d) Why is Plasmodium called as a digenetic parasite ? Discuss the human cycle of the parasite. 2 + 8

2. Answer any three questions : 6 × 3 = 18
(a) "Onychophorans are connecting link between phyla Annelida and Arthropoda". — Discuss. 6
(b) What is the meaning of the word 'Bryozoa' ? Cite general features of the phylum Bryozoa with two examples. 1 + 5
(c) What is the meaning of the word 'Tricladida' ? Give an account of the alimentary system of a tricladid turbellaria. 1 + 5
(d) Discuss the types of gills of prawn with their characteristic features. 6
(e) Give an account of social behaviour of Apis honeybee. 6
(f) Illustrate the reproductive organs of Sepia with their functions. 6

3. Answer any four questions : 3 × 4 = 12
(a) What is heteronereis ? Write its features.
(b) Describe the larval structures of hemichordate with a diagram.
(c) Describe the structure of water vascular system of sea star with a diagram.
(d) Write an account of flame cell of tapeworm with diagram.
(e) What is metamerism ? Explain with example.
(f) Define bilateral and radial symmetry with examples.
(g) Illustrate the structures associated with asconoid canal system.
(h) Write an account of septal nephridia of Pheretima with diagram.

B.D.P. Term End Examination ( Elective ) (Zoology)
2nd Paper : Cytogenetics and Molecular Biology )

1. Answer any two questions : 10 × 2 = 20
(a) Describe the general structure and features of a chromosome with a suitable labelled diagram. 7 + 3
(b) Write down the functions of the following proteins in prokaryotic DNA replication :
(i) DNA Polymerase-I
(ii) DNA Polymerase -III
(iii) Topoisomerase
(iv) DNA ligase
(v) SSB protein. 2 + 2 + 2 + 2 + 2
(c) What is spliceosome ? Explain its role during splicing of a transcript with suitable sketches. What is anti-sense RNA ? 2 + 6 + 2
d) What is plasmid vector ? Describe the disadvantages of plasmid vectors. Mention the process of in situ hybridization. 2 + 3 + 5

2. Answer any three questions : 6 × 3 = 18
(a) Describe the detailed structure of nucleosome with a suitable diagram. 4 + 2
(b) What is lampbrush chromosome ? Mention its functional significance. 3 + 3
(c) What do you mean by karyokinesis ? Compare between karyokinesis and cytokinesis. 2 + 4
(d) What do you understand by point mutation ? Illustrate your answer with a suitable example. 2 + 4
(e) With a suitable labelled diagram, describe the process of
(f) Compare DNA with RNA on the basis of their functional and structural aspects. 3 + 3

3. Answer any four questions : 3 × 4 = 12
(a) Name two human diseases caused by sex-linked recessive mutation. Mention a holandric genetic character of man. 2 + 1
(b) Write a note on the importance of PCR.3
(c) What is the function of 'rho' factor ? 3
(d) Name two restriction endonucleases. Mention the recognition site of any one of them. 2 + 1
(e) What do you mean by nick translation ? 3 monoclonal antibody. 3
(g) State the roles of a, ß and ß subunits of RNA polymerase in the process of transcription in E. coli. 3
(h) Explain the significance of DNA fingerprinting.