Botany Mcqs Paper 2013

Botany Mcqs Paper 2013

Botany Mcqs Paper 2013

  • 1. Plants expressing foreign genes introduced by genetic engineering are:
  • (a) Transgens (b) Hybrids (c) Mutants (d) Polyploids (e) None of these
  • 2. An association of species in which both partners benefits is called:
  • (a) Antagonism (b) Competition (c) Mutualism (d) None of these
  • 3. Autotrophs are primary producers in:
  • (a) Food web (b) Food chain (c) Food series (d) Food security (e) None of these
  • 4. A multiprotein complex that comprises ATPase in thylakoid membrane is:
  • (a) CF0-CF1 (b) CF0-CF2 (c) CF1-CF2 (d) CF2-CF1 (e) None of these
  • 5. Set of conditions in which an organism completes its life cycle is:
  • (a) Niche (b) Habitat (c) Biome (d) Habit (e) None of these
  • 6. Suberized band in the cell wall of endodermis is:
  • (a) Exodermal strip (b) Casparian strip (c) Abscision strip
  • (d) Hypodermal strip (e) None of these
  • 7. Genetically dwarfness can be overcome by treatment with:
  • (a) Jasmonates (b) Auxins (c) Abscisic acid (d) Gibberellins (e) None of these
  • 8. Exchange of genetic material between two paired chromosome during meiosis is:
  • (a) Test cross (b) Back cross (c) Inbreeding (d) None of these
  • 9. Free space in tissues comprising cell wall and intercellular spaces:
  • (a) Symplast (b) Apoplast (c) Protoplast (d) Amyloplast (e) None of these
  • 10. Chromosome compliment with 2n-1 is called:
  • (a) Disomy (b) Nullisomy (c) Monosomy (d) Tetrasomy (e) None of these
  • 11. Plants shedding their leaves seasonally are called:
  • (a) Annuals (b) Biannuals (c) Perennials (d) Deciduous (e) None of these
  • 12. Organisms that obtain energy by metabolizing the inorganic sources are:
  • (a) Lithotrophs (b) Osmotrophs (c) Heteroautotrops (d) Phototrophs (e) None of these
  • 13. The culminating stage of plant succession in a given ecosystem is:
  • (a) Cline (b) Climate (c) Climax (d) Cleave (e) None of these
  • 14. Climatically and geographically similar conditions on the earth are called:
  • (a) Biotope (b) Biomes (c) Biosphere (d) Biography (e) None of these
  • 15. Vernalization is process in which flowering is promoted by:
  • (a) Salt treatment (b) Hot treatment (c) Cold treatment (d) None of these
  • 16. Which of the following contains its own DNA?
  • (a) Golgi bodies (b) Mitochondria (c) Ribosomes (d) None of these
  • 17. In chlorophyll, four rings of pyrrole forming a complex with:
  • (a) Cu-atom (b) Fe-atom (c) Mg-atom (d) K-atom (e) None of these
  • 18. Plants growing inside another plant are called:
  • (a) Endophytes (b) Exophytes (c) Amphiphytes (d) Phleophytes (e) None of these
  • 19. A functional unit of modern ecology is:
  • (a) Habitat (b) Biosphere (c) Succession (d) None of these
  • 20. Mutation arising as an immediate and direct response to selective pressure:
  • (a) Point mutation (b) Adaptive mutation (c) Shift mutation
  • (d) Natural selection (e) None of these

Botany Mcqs Paper 2013