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Q. No.Megasporangium is equivalent to
(1) embryo sac
(2) fruit
(3) nucellus
(4) ovule
Difficulty Level:
Which one of the following may require pollinators, but is genetically similar to autogamy?
(1) Geitonogamy
(2) Xenogamy
(3) Apogamy
(4) Cleistogamy
Difficulty Level:
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
Difficulty Level:
Functional megaspore in an angiosperm develops into
(1) ovule
(2) endosperm
(3) embryo sac
(4) embryo
Difficulty Level:
The morphological nature of the edible part of coconut is
(1) perisperm
(2) cotyledon
(3) endosperm
(4) pericarp
Difficulty Level:
Attractants and rewards are required for
(1) anemophily
(2) entomophily
(3) hydrophily
(4) cleistogamy
Difficulty Level:
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
Difficulty Level:
Pollination in water hyacinth and water lily is brought about by the agency of
(1) water
(2) insects or wind
(3) birds
(4) bats
Difficulty Level:
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
Difficulty Level:
The coconut water from tender coconut represents
(1) fleshy mesocarp
(2) free-nuclear proembryo
(3) free-nuclear endosperm
(4) endocarp
Difficulty Level:
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