Endosperm is consumed by developing embryo in the seed of
1. Coconut
2. Pea
3. Maize
4. Castor

Subtopic:  Seed |
 75%
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Unisexuality of flowers prevents
1. Getionogamy but not xenogamy
2. Autogamy and geitonogamy
3. Autogamy but not geitonogamy
4. Both getionogamy and xenogamy

Subtopic:  Pollination & Outbreeding Devices |
 58%
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Which one of the following is resistant to enzyme action
1. Pollen exine
2. Leaf cuticle
3. Cork
4. Wood fibre

Subtopic:  Stamen: Male Gametophyte |
 94%
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An example of a seed with endosperm, perisperm, and caruncle is:

1. castor 2. cotton
3. coffee 4. lily
Subtopic:  Seed |
 80%
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Apomictic embryos in citrus arise from
1. Maternal sporophytic tissue in ovule
2. Antipodal cells
3. Diploid egg
4. Synergids

Subtopic:  Apomixis & Polyembryony |
 73%
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Wind pollinated flowers are
1. Small, producing large number of dry pollen grains
2. large producing abundant nectar and pollen
3. Small, producing nectar and dry pollen
4. Small, brightly coloured, producing large number of pollen grains

Subtopic:  Pollination & Outbreeding Devices |
 84%
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Transfer of pollen grains from the anther to the stigma of another flower of the same plant is called     
1. Geitonogamy
2. Karyogamy
3. Autogamy
4. Xenogamy

Subtopic:  Pollination & Outbreeding Devices |
 89%
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Filiform apparatus is a characteristic feature of:

1. Suspensor 2. Egg
3. Synergid 4. Zygote
Subtopic:  Stamen: Male Gametophyte |
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Nucellar polyembryony is reported in which of the following species?
1. Citrus
2. Gossypium
3. Triticum
4. Brassica

Subtopic:  Apomixis & Polyembryony |
 89%
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In which one of the following pollination is autogamous
1. Geitonogamy
2. Xenogamy
3. Chasmogamy
4. Cleistogamy

Subtopic:  Pollination & Outbreeding Devices |
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