72. In a flowering plant, the largest number of haploid cells occur in
(a) Ovule
(b) Microsporangia
(c) Root tip
(d) Cambium
Answer: (b) Microsporangia
73. The edible part of cauliflower is
(a) Fruit
(b) Bud
(c) Inflorescence
(d) Flower
Answer: (c) Inflorescence
74. Terminal part of the main axis of the flower is converted into the flower in
(a) Ranunculus
(b) Iberis
(c) Helianthus
(d) Pisum
Answer: (a) Ranunculus
75. Claw is found in the petals of
(a) Cruciferae
(b) Malvaceae
(c) Poaceae
(d) Solanaceae
Answer: (a) Cruciferae
76. Pappus is a modification of
(a) Calyx
(b) Corolla
(c) Stamens
(d) Gynoecium
Answer: (a) Calyx
77. A ligulate corolla found in Compositae is also known as
(a) Masked
(b) Two-lipped
(c) Strap-shaped
(d) Wheel-shaped
Answer: (c) Strap-shaped
78. A complete flower is that flower which has
(a) Calyx and corolla
(b) Calyx, corolla and androecium
(c) Corolla, androecium and gynoecium
(d) Calyx, corolla, androecium and gynoecium
Answer: (d) Calyx, corolla, androecium and gynoecium
79. The vexillum and keel in pea flowers constitute
(a) Calyx
(b) Corolla
(c) Androecium
(d) Gynoecium
Answer: (b) Corolla
80. Numerous ovules are present in the ovary of the plants belonging to the family
(a) Solanaceae
(b) Leguminosae
(c) Cruciferae
(d) Compositae
Answer: (b) Leguminosae
81. Which of the following statements is correct?
(a) Flower is a modified root
(b) Flower is a modified shoot
(c) Flower is a modified leaf
(d) Flower is a modified inflorescence
Answer: (b) Flower is a modified shoot
82. A monocarpic plant is which
(a) Produces only one seed per fruit
(b) Produces only one fruit in its cycle
(c) Has only one carpel in its flower
(d) Flowers only once in its life cycle
Answer: (d) Flowers only once in its life cycle
83. A flower which never opens and its pollen grains germinate inside the anther and the pollen tubes enter the carpels to fertilise the ovules is called
(a) Polygamous
(b) Cleistogamous
(c) Cleistocarpic
(d) Autogamous
Answer: (b) Cleistogamous
84. Anthers are versatile in
(a) Oryza sativa
(b) Hibiscus esculentus
(c) Solanum tuberosum
(d) Helianthus annuus
Answer: (a) Oryza sativa
85. A flower is a modified
(a) Leaf
(b) Root
(c) Shoot
(d) All (a), (b), (c)
Answer: (c) Shoot
86. The type of fossil pollen grains present in the area may be helpful in the exploration of
(a) Coal
(b) Petroleum
(c) Fossil pteridophytes
(d) All (a), (b), (c)
Answer: (d) All (a), (b), (c)
87. The placentation in a multilocular ovary, where the ovules are borne over the entire inner surface, is called
(a) Pendulous
(b) Marginal
(c) Superficial
(d) Parietal
Answer: (c) Superficial
88. Syngenesious condition of stamens is found in
(a) Labiatae
(b) Solanaceae
(c) Malvaceae
(d) Asteraceae (Compositae)
Answer: (d) Asteraceae (Compositae)
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