Botany Multiple Choice Questions and Answers

31. Cutting is not suitable for

1. Lime
2. Sugar-cane
3. Oleander
4. Tapioca

32. Disadvantages of natural vegetative propagation includes

1. lack of dispersal mechanisms
2. no fertilization is involved
3. area is quickly colonized
4. daughter plants can grow quickly

33. Eutrophication results in reduction of

1. Dissolved nitrate
2. Dissolved Oxygen
3. Mineral salts
4. Parasitic protozoa.

34. Example of natural vegetative propagation does not include

1. Corals
2. bulbs
3. corms
4. rhizomes

35. Example of plant in which vegetative propagation is occurred by leaves is called

1. Cannabisn
2. Chrysanthemum
3. Cryophyllum
4. Brassica

36. Examples of Corm include

1. Gloriosa
2. Canna
3. Lallang
4. Ginger

37. External agencies are not required in

1. natural vegetative propagation
2. sexual reproduction
3. bisexual reproduction
4. trisexual reproduction

38. For successful grafting, stock and scion shall be

1. Of different species
2. Of same species
3. Of similar groups
4. Of different class

39. Green house effect is related to

1. Increased growth of green algae
2. Global warming
3. Cultivation of vegetables in house
4. Development of terrace gardens.

40. Green manure plants used by farmers mainly belong to

1. Compositae
2. Leguminosae
3. Solanaceae
4. Poaceae