Plant Diversity and Systematics (DSC-1, Botany-01) — DU B. Sc. Life Science (Botany) Previous Year Question Papers

5. Draw well-labelled diagrams wherever necessary. (a) Expand the following (any three) : (3x1=3) (b) Define any five of the following terms: (5x1=5) (i) Transfusion tissue (iii) Coenobium (c) Fill in the blanks: (5x1=5) (1) Fungal cell wall is predominantly made up of a polysaccharide known as (i) The name of order ends with suffix (iii) Trabeculae are present in the sporophyte of (iv) The alternate name of the family Cruciferae is -• (v) Evolutionary history of an organism is known as (d) What will be the name of the genus commemorating the following persons? (2x]=2) 2. Differentiate between the following (any three) : (1) Lytic and lysogenic cycle (ii) Raceme and Catkin inflorescence (v) Natural and artificial system of classification 3. Write short notes on the following (any three) : (i) Sexual reproduction in Rhizopus (il) Binomial nomenclature (iii) Asexual reproduction in Penicillium (iv) Type method (v) Common features of gymnosperms 4. (a) Draw well-labelled diagrams of the following (any two): (i) V. S. gill of Agaricus (ii) V.S. of Marchantia thallus through gemma cup (iii) EM of bacterial cell (b) Interpret the following citations (any two) : (1) Lupinus [Tourn.] L. (ii) Cerasus cornuta Wall. ex Royle (a) Enlist the different methods of genetic recombination in bacteria. Explain any one of them. (5) (b) Give an account of adaptation of land habit in bryophytes. (5)