Introductory Life Sciences for Home Science — DU B.Sc. (Prog.) Home Science Previous Year Question Papers

SECTION-A (ras-3T) 1. Write short notes on any five of the following : (a) Adventitious roots Discuss the pathogenesis of the disease. (10) (b) Explain the preventive measures and control strategies for managing this zoonotic disease. "6. (a) Give examples of major diseases caused by mosquito species along with their infective stages. Discuss the methods used for the control and management of mosquito populations. (7) SECTION-B (ras -đ) 4. (a) Differentiate between prokaryotic and eukaryotic cells with diagram & examples. (5) (b) Illustrate the structure of an animal cell and label its different organelles, (with diagram). Briefly explain the function of each organelle. 5. (a) What is Taeniasis, and how is it transmitted? (d) Double fertilisation 2. (a) Elaborate the method of approach grafting with principle, precautions and well labeled diagram. (b) Briefly explain the process of transpiration and various factors affecting it. (5) 3. (a) Write scientific name, parts used and uses of the following plants: (2x5=10) (iii) Aloe vera (b) Explain the role of plants in air pollution control.