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Q. No.Persistent nucellus in the seed is known as:
1.
Tegmen
2.
Chalaza
3.
Perisperm
4.
Hilum
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyIn some plants, the female gamete develops into an embryo without fertilization. This phenomenon is known as:
| 1. | Parthenogenesis | 2. | Autogamy |
| 3. | Parthenocarpy | 4. | Syngamy |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhat is the fate of the male gametes discharged in the synergid?
| 1. | One fuses with the egg and the other fuses with central cell nuclei |
| 2. | One fuses with the egg and the other(s) degenerate(s) in the synergid |
| 3. | All fuse with the egg |
| 4. | One fuses with the egg and the other(s) fuse(s) with a synergid nucleus |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhich one of the following statements regarding post-fertilization development in flowering plants is incorrect?
1. Ovules develop into an embryo sac
2. Ovary develops into fruit
3. Zygote develops into an embryo
4. Central cell develops into endosperm
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyIn a cereal grain, the single cotyledon of embryo is represented by :
1. coleorhiza
2. scutellum
3. prophyll
4. coleoptiles
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology1. Cork
2. Wood fibre
3. Pollen exine
4. Leaf cuticle
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology| 1. | it helps in the entry of pollen tube into the synergid |
| 2. | it prevents the entry of more than one pollen tube into the embryo sac |
| 3. | it brings about opening of the pollen tube |
| 4. | it guides pollen tube from the synergid to the egg |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology1. autogamy, but not geitonogamy
2. Both geitonogamy and xenogamy
3. geitonogamy, but not xenogamy
4. autogamy and geitonogamy
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWind pollinated flowers are –
1. small, brightly coloured, producing large number of pollen grains
2. small, producing large number of dry pollen grains
3. large, producing abundant nectar and pollen
4. small, producing nectar and dry pollen
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyTransfer of pollen grains from the anther to the stigma of another flower of the same plant is called
1. xenogamy
2. geitonogamy
3. karyogamy
4. autogamy
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologySelect Chapter Topics:
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