Biology chapter 16 Reproduction mcqs solved

41. The types of vegetative propagation in plants are:

    

(a) by leaves    

(b) by roots

(c) by stem    

(d) by seeds

(e) all of them✅

42. The methods of artificial vegetative propagation are:

(a) graftings    

(b) cutting

(c) underground stem  

(d) all of them✅

43. A type of artificial vegetative propagation in which individuals are produced from single parent with identical properties as in parent is called:

    

(a) cloning✅

(b) Cutting

(c) grafting    

(d) underground stem

44. As a result of double fertilization, fusion nucleus give rise to:

    

(a) Fruit    

(b) Seeds

(c) Water storing tissue 

(d) Food storing tissue✅

45. Parthenocarpic fruits may be formed by the ovary in which no ______ occurs:

(a) Fertilization✅

(b) Pollination

(c) Development    

(d) None of these

46. In rhizopus, sporangium containing spores are produced or born:

(a) On filaments

(b) On the tips of sporangiopheres✅

(c) On the stolon hyphae

(d) On rhizoids

47. Each spore when exposed to suitable conditions form new:

(a) mycelium✅

(b) sporangiopores

(c) stolon hyphae    

(d) None of them

48. Method of vegetative propagation in plants are:

(a) By seeds    

(b) By stem

(c) By roots    

(d) All of them✅

49. The example of a plant showing vegetative propagation by leaf is:

(a) Grasses    

(b) Bryophyllum✅

(c) Banana    

(d) strawberry

50. Flowers spread through wind pollination are usually:

(a) produce nectar

(b) lighter in weight

(c) with long feathering stigma

(d) a, b and c✅

51. The examples of flowers showing pollination through water are:

(a) Potamogeton    

(b) Coconut✅

(c) Vallisneria    

(d) None of these

52. After fertilization ___ developed into seed:

(a) Ovary    

(b) Stigma

(c) Ovule✅

(d) Egg

53. The plants in which seeds and fruits are dispersed by wind are:

(a) Grasses    

(b) Bombax

(c) Calotropis    

(d) All of them✅

54. The dispersal of seed by water occurs in plants:

(a) Lotus    

(b) Daffodils

(c) Coconut    

(d) All of them✅

55. The dome shape wall in the sporangium present in center is called:

(a) peripheral wall    

(b) Columella✅

(c) Central swelling    

(d) None of them

56. In the grain of maize, the cotyledon is modified into an organ called:

(a) Shield    

(b) Scutellum✅

(c) Endosperm    

(d) All of them

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