What is 2,4-D____________________?

Related Mcqs:

1. Fleshy fruits developed from the ovary wall with out stony layer are known as____________________?

   A. Pome
   B. Berry
   C. Drupe
   D. None of the above

2. The transfer of pollen grains from anthers to the stigma by any pollinating agent is called______________?

   A. Allogamy
   B. Pollination
   C. Crossing
   D. Breeding

3. A science which deals with classification of plants is called___________________?

   A. Ecology
   B. Morphology
   C. Taxonomy
   D. Histology

4. Cleft grafting is most successful in_________________?

   A. Almond
   B. Apple
   C. Both a & b
   D. None of the above

5. Photosynthesis takes place in_____________________?

   A. All green parts of plants
   B. Only leaves
   C. Only flowers and fruits
   D. none

6. Witting and shriveling of fruits is prevented by the use of_________________?

   A. Waxing
   B. 2,4-D
   C. Ethylene
   D. None of the above

7. The smell in onion bulb is due to__________________?

   A. bad odour of the soil
   B. Much sugar
   C. Sulphur components
   D. Fleshy leaves

8. Transfer of pollen grains to the stigma of the flowers of another plant is known as _______________________?

   A. Allogamy
   B. Autogamy
   C. Polygamy
   D. Cleistogamy

9. The photo nthesis reaction is determined by_________________?

   A. Hill reaction
   B. Goldman equation
   C. Nernst equation
   D. Oxidation-reduction reaction

10. The term vernalization was first used in 1928 by____________________?

    A. Chailakhian
    B. Gassner
    C. Lysenko
    D. Wrinkker