Competitive Exams: Botany MCQs (Practice-Test 103 of 104)

  1. The organisms that thrive upon the remains of dead plants and animals arc categorized as

    1. Carnivores

    2. Omnivores

    3. Scavengers

    4. Predators

  2. The models of speciation include

    1. Apomixis and polyploidy

    2. Svnipatric and ahlopatric

    3. Svznpatric and polyploidy

    4. Apomixis and ahlopatric

  3. The syconus (syconium) fruit develops from the inflorescence called

    1. Coenathium

    2. Hypanthodium

    3. Cyathium

    4. Capitulum

  4. Branched sclerenchyma occurring as isolated cells scattered in any tissue are called

    1. Libriform fibres

    2. Tracheidal cells

    3. Idioblasts

    4. Stone cells

  5. Conjunctive tissue is found in the mature stern of

    1. Mirabihisjalapa

    2. Peperomia pellucida

    3. Boerhaavia diffusa

    4. Tinospora cordifolia

  6. A specimen or illustration used by the author or designated by him as the nomenclatural type is called

    1. Isoparatvpc

    2. Isotypc

    3. Syntype

    4. Holotype

  7. The alternate name for the family Palmae is

    1. Poaceac

    2. Palmaceae

    3. Araceae

    4. Arecaceae

  8. Which one of the following is NOT permissible according to the rules of botanical nomenclature?

    1. Autonym

    2. Basionym

    3. Tautonym

    4. Synonym

  9. Gynobasic style is the characteristic feature of the family Labiates but it is also found in several members of

    1. Nymphaeaccae

    2. Apocynasceae

    3. Boraginaceae

    4. Liliaceae

  10. The members of which one of the following families produce a single functional pollen grain from one pollen mother cell

    1. Apiaceae

    2. Apocynaceae

    3. Boraginaceae

    4. Liliaceae

  11. Study of endemism is important to a plant taxonomist because

    1. Of wide distribution of endemics

    2. endemics have been subjected to major climatic revolutions

    3. Taxonomist is equally concerned with the history of floras

    4. Endemics have not been physiographic ally isolated

  12. All the individuals with the same genotype constitute an/a

    1. Ecotype

    2. Phenotype

    3. Cerotype

    4. Biotype

  13. An ovule which becomes curved so that the nucleolus and embryo sac lie at right angles to the funicle is

    1. Anatropous

    2. Orthotropous

    3. Hemitrope

    4. Campylotropous

  14. Which of the following Angiosperm families possess vessels in the wood?

    1. Magnoliaceae

    2. Degeneriaceae

    3. Winteraceae

    4. Annonaceac

    Select the correct answer

    1. 1, 2 and 3

    2. 1, 3 and 4

    3. 1, 2 and 4

    4. 2 and 4

  15. Which one of the following pairs is correctly matched?

      • Cvcas
      • . Presence f female cones
      • Tax us:
      • Presence of resin canals
      • Ephedrine:
      • Occurrence of double fertilization
      • Gnetum:
      • Presence of monophonic female gametophyte