Q. No.
Which one of the following may require pollinators, but is genetically similar to autogamy?
(1) Geitonogamy
(2) Xenogamy
(3) Apogamy
(4) Cleistogamy
Flowers, which have single ovule in the ovary and are packed into inflorescence are usually pollinated by
(1) water
(2) bee
(3) wind
(4) bat
Functional megaspore in an angiosperm develops into
(1) ovule
(2) endosperm
(3) embryo sac
(4) embryo
The morphological nature of the edible part of coconut is
(1) perisperm
(2) cotyledon
(3) endosperm
(4) pericarp
Attractants and rewards are required for
(1) anemophily
(2) entomophily
(3) hydrophily
(4) cleistogamy
In majority of angiosperms
(1) egg has a filiform apparatus
(2) there are numerous antipodal cells
(3) reduction division occurs in the megaspore mother cells
(4) a small central cell is present in the embryo sac
Pollination in water hyacinth and water lily is brought about by the agency of
(1) water
(2) insects or wind
(3) birds
(4) bats
Which one of the following statements is not true?
| 1. | Exine of pollen grains is made up of sporopollenin |
| 2. | Pollen grains of many species cause severe allergies |
| 3. | Stored pollen in liquid nitrogen can be used in the crop breeding programmes |
| 4. | Tapetum helps in the dehiscence of anther |
The coconut water from tender coconut represents
(1) fleshy mesocarp
(2) free-nuclear proembryo
(3) free-nuclear endosperm
(4) endocarp
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