Insect Vector and Disease — DU B.Sc. (Hons.) Zoology Previous Year Question Papers

: B.Sc/ B.Com/B.A. Theory Examination, May-June, 2026 Draw well labelled diagram wherever necessary. Q1. A. Give one line answer for each of the following: a. Insects are also called as hexapods. Why? b. What is vectorial capacity? c. What are Halteres? d. Function of Antennae. 8. Differentiate between: a. Eggs of Anopheles and culex b. Mechanical and Biological vector c. Sand flies and Houseflies C. Match the colulnns: ® Silverfish ql) Housefly cO Fleas an Aedes G) Siphoning mouthparts (C) Mechanical vector a) Siphonaptera Q2. Explain any three insect mouth parts with well labelled diagran. of any two diseases and their control measures. Q4. Why insects are so successful in this planet? Explain with reference to: a) Developmental characteristics b) Specificity of feeding c) Structural perfectious Q5. a) Explain medical importance office. b) Discuss the control and prevention of diseases caused by fleas. c) Discuss the role of housefly as mechanical and biological vectors in the transmission of diseases. Q6. Write short notes on any TIIREE of the following: i) Types of Insect legs ii) Prevention and control of Mosquitoes _iii)-Tyi55as iv) Vertical and Horizontal transmission