Q. No.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 |
Which one of the following may require pollinators, but is genetically similar to autogamy?
(1) Geitonogamy
(2) Xenogamy
(3) Apogamy
(4) Cleistogamy
The morphological nature of the edible part of coconut is
(1) perisperm
(2) cotyledon
(3) endosperm
(4) pericarp
Pollination in water hyacinth and water lily is brought about by the agency of
(1) water
(2) insects or wind
(3) birds
(4) bats
Attractants and rewards are required for
(1) anemophily
(2) entomophily
(3) hydrophily
(4) cleistogamy
Functional megaspore in an angiosperm develops into
(1) ovule
(2) endosperm
(3) embryo sac
(4) embryo
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
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
The ovule of an angiosperm is technically equivalent to
1. megasporangium
2. megasporophyll
3. megaspore mother cell
4. megaspore
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