Pollen grains are shed at which stage?

(1) 2 celled 

(2) 3 celled

(3) Usually at 2-celled, but sometimes 3-celled

(4) Single celled stage

Subtopic:  Pollination & Outbreeding Devices |
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Sporophyte formation from gametophyte is called

(1) apogamy

(2) sporogenesis

(3) gametogenesis

(4) apospory

Subtopic:  Apomixis & Polyembryony |
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Which of these is a diploid structure ?

(1) Pollen grains

(2) Egg

(3) Megaspore

(4) MMC

Subtopic:  Stamen: Microsporangium |
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False fruit in an apple is formed from

(1) receptacle

(2) thalamus

(3) peduncle

(4) petals.

Subtopic:  Fruit |
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Cross pollination in true genetic sense is 

(1) allogamy

(2) cleistogamy

(3) geitonogamy

(4) autogamy

Subtopic:  Pollination & Outbreeding Devices |
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Seed of castor is

(1) non-endospermic, exalbuminous

(2) endospermic albuminous

(3) endospermic exalbuminous

(4) non-endospermic albuminous.

Subtopic:  Seed |
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Ubisch bodies are secreted from

(1) ovule

(2) tapetum

(3) both of these

(4) none of these

Subtopic:  Stamen: Anther |
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Aleurone layer is

(1) haploid

(2) diploid

(3) triploid

(4) tetraploid

Subtopic:  Seed |
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Edible part of apple is the

(1) thalamus

(2) mesocarp

(3) epicarp

(4) endocarp

Subtopic:  Fruit |
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Pollination by bat is called

(1) ornithophily

(2) chitopteriphily

(3) malacophily

(4) anemophily

Subtopic:  Pollination & Outbreeding Devices | Post Pollination Events |
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