Q. No.Which one of the following may require pollinators, but is genetically similar to autogamy?
1. Xenogamy
2. Apogamy
3. Cleistogamy
4. Geitonogamy
1. Xenogamy
2. Apogamy
3. Cleistogamy
4. Geitonogamy
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Which of the following are the important floral rewards for animal pollinators?
1. Nectar and pollen grains
2. Floral fragrance and calcium crystals
3. Protein pellicle and stigmatic exudates
4. Colour and large size of the flower
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Transmission tissue is a characteristic feature of:
| 1. | Solid style | 2. | Dry stigma |
| 3. | Wet stigma | 4. | Hollow style |
Male gametophyte in angiosperms produces:
1. Single sperm and a vegetative cell
2. Single sperm and two vegetative cells
3. Three sperms
4. Two sperms and a vegetative cell
Coconut water from a tender coconut is:
1. Free nuclear endosperm
2. Innermost layers of the seed coat
3. Degenerated nucellus
4. Immature embryo
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Filiform apparatus is characteristic feature of:
1. Nucellar embryo
2. Aleurone cell
3. Synergids
4. Generative cell
The wheat grain has an embryo with one large, shield-shaped cotyledon known as:
| 1. | Coleorrhiza | 2. | Scutellum |
| 3. | Coleoptile | 4. | Epiblast |
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In angiosperms, microsporogenesis and megasporogenesis:
1. form gametes without further divisions
2. Involve meiosis
3. occur in ovule
4. occur in anther
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