Plant Diversity and Evolution — DU B.Sc. (Hons.) Botany Previous Year Question Papers

2. Attempt four questions in all. 4. All parts of a question must be answered together. 5. Draw diagrams wherever required. (a) Name the genus having the following characteristic (i) Fairy Ring (ii) Tuberculate Rhizoids (iii) Peltate columella (iv) Scalariform conjugation (v) Gymnosperm with jointed stem (vi) Bryophyte with leafy gametophyte (vii) Pteridophyte with ligule (i) The theory of natural selection was proposed by - (ii) The viral genome incorporated in bacterial genome is known as (iii) The reserve food material in brown algae (iv) In fungi, asexual spores produced inside sporangia are called (v) - is known as cord moss. (vi) The two types of scales present in Marchantia are . and (vii) Heterotrichous thallus is present in algae. (c) Match the following : (1x5=5) (i) R. H. Whittaker (a) Apical Notch (ii) Myxomycetes (b) Five Kingdom (ii) Marchantia (c) Slime molds (iv) Sporophyll (d) Vessel elements in xylem (e) Spore-bearing leaf (b) Chlorophyceae and Phaeophyceae (c) Antheridiophore and Archaegoniophore (d) Lytic and Lysogenic cycle (e) Gymnosperm and Angiosperm (a) V.S. thallus of Marchantia passing through gemma cup (b) Thallus of Rhizopus showing sporangiophore (c) Morphological diagram of Spirogyra (d) Female strobilus of Gnetum. (e) Model of TMV (a) Types of Lichens and their ecological roles (b) Evolutionary trends in Pteridophytes (c) Affinities between Gymnosperms and Angiosperms (d) Morphology of Marchantia thallus (e) Brief account of Ephedra 5. Attempt (any two) from the following: (7.5x2=15) (a) Artificial, natural, and phylogenetic systems of classification. (b) "Bryophytes are amphibians of the plant kingdom" Comment. Draw the life cycle of Funaria. (c) Describe Genetic Recombination in Bacteria.