Nalanda Open University
Annual Examination 2017
B.Sc. Botany (Subsidiary), Part-I
Paper-I
Time: 3.00 Hrs. Full Marks: 80
Answer any Five questions. All questions carry equal marks.
1. Describe properties and structure of a Bacteriophage.
2. Describe structure and reproduction of oedogonium.
3. Describe life cycle of Albugo.
4. Give an account of sporophyte of Sphagnum.
5. Describe the strobilus of Selaginella. What is its significance in heterospory?
6. Describe the mode of reproduction in a Pteridophyte studied by you.
7. Describe any four of the following:
Syncarpous Zygomorphic Cyathium
Verticillaster Placentation Floral diagram
8. Describe floral characters, floral formula and floral diagram of family Lamiaceae.
Write botanical names of two plants of the family.
9. Describe characteristic feature of a gymnosperm studied by you.
10. Assign the following plants to their family.
Potato Turnip Cucunis
Ricinus Rice Wheat
Mentha Mango