57. Maturation of stamens and pistils at different times in the same flower is called or (Maturation of male and female sex organs at different times is known as)
(a) Heterospory
(b) Heterostyly
(c) Herkogamy
(d) Dichogamy
Answer: (d) Dichogamy
58. Part of the gynoecium which receives the pollen is called
(a) Style
(b) Stigma
(c) Ovule
(d) Ovary
Answer: (b) Stigma
59. A student prepared a longitudinal section of a flower, which of the following characters is the most likely to observe?
(a) The manner of placement of members in a whorl
(b) The manner of insertion of members of different whorls on the thalamus
(c) The type of pollination
(d) Number of floral whorls in definite whorls
Answer: (b) The manner of insertion of members of different whorls on the thalamus
60. The aestivation of corolla of pea flower is called
(a) Contorted
(b) Valvate
(c) Vexillary
(d) Imbricate
Answer: (c) Vexillary
61. In which of the following androgynophore is present?
(a) Brassica
(b) Helianthus
(c) Nelumbium
(d) Gynandropsis
Answer: (d) Gynandropsis
62. What is obdiplostemonous condition?
(a) The inner whorl of stamens are opposite to petals
(b) The outer whorl of stamens are opposite to petals
(c) Stamens are united
(d) Stamens are free
Answer: (b) The outer whorl of stamens are opposite to petals
63. The mode of arrangement of ovules in the cavity of ovary is known as
(a) Prefoliation
(b) Placentation
(c) Pollination
(d) Aestivation
Answer: (b) Placentation
64. Persistent calyx forms a dry bladder-like structure enclosing edible berry in
(a) Nicotiana
(b) Solanum
(c) Physalis
(d) Capsicum
Answer: (c) Physalis
65. Smallest flower is of
(a) Carica papaya
(b) Nelumbo nucifera
(c) Wolffia microscopica
(d) Rafflesia arnoldii
Answer: (c) Wolffia microscopica
66. Subterranean cleistogamous flowers are found in
(a) Ficus benghalensis
(b) Commelina benghalensis
(c) Adina cordifolia
(d) Anthocephalus cadamba
Answer: (b) Commelina benghalensis
67. Coloured part in the flower of Poinsettia (Euphorbiaceae) is
(a) Bract
(b) Leaf
(c) Petal
(d) Perianth
Answer: (a) Bract
68. Unisexual flowers are also termed as
(a) Monoecy
(b) Dicliny
(c) Monocliny
(d) Monogamy
Answer: (b) Dicliny
69. An orthotropous ovule is one in which micropyle and chalaza are
(a) Oblique to funiculus
(b) At right angles to funiculus
(c) Parallel to funiculus
(d) In straight line of funiculus
Answer: (d) In straight line of funiculus
70. Basal placentation is present in
(a) Compositae
(b) Solanaceae
(c) Malvaceae
(d) Mimosoideae
Answer: (a) Compositae
71. Pollen grains represent
(a) Male gametophyte
(b) Female gametophyte
(c) Male sporophyte
(d) Female sporophyte
Answer: (a) Male gametophyte
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