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Q. No.The type of placentation shown in the given figure is seen in:
1.
Sunflower and Marigold
2.
Mustard and Argemone
3.
Dianthus and Primrose
4.
Tomato and Lemon
Subtopic: Inflorescence |
79%
Level 2: 60%+
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Drupes:
| 1. | develop from monocarpellary superior ovaries and are one seeded |
| 2. | develop from monocarpellary inferior ovaries and are one seeded. |
| 3. | develop from multicarpellary superior ovaries and are many seeded. |
| 4. | develop from multicarpellary inferior ovaries and are many seeded. |
Subtopic: Fruits & their Types |
92%
Level 1: 80%+
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In plants such as bean, gram and pea, the endosperm is:
1. haploid.
2. formed by free nuclear divisions only.
3. not formed as a result of double fertilisation.
4. not present in mature seeds.
1. haploid.
2. formed by free nuclear divisions only.
3. not formed as a result of double fertilisation.
4. not present in mature seeds.
Subtopic: Seed |
81%
Level 1: 80%+
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In a floral formula, the symbols \(\overline{G}\) and \(\oplus\) respectively denote:
1. Superior ovary and Zygomorphic flower
2. Inferior ovary and Zygomorphic flower
3. Superior ovary and Actinomorphic flower
4. Inferior ovary and Actinomorphic flower
1. Superior ovary and Zygomorphic flower
2. Inferior ovary and Zygomorphic flower
3. Superior ovary and Actinomorphic flower
4. Inferior ovary and Actinomorphic flower
Subtopic: Flower & Parts of Flower |
79%
Level 2: 60%+
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Match each item in Column I with one in Column II and select the correct match from the codes given below:
Codes:
| Column I | Column II | ||
| A | Ashwagandha | P | Ornamental |
| B | Petunia | Q | Dilation of pupil |
| C | Fumigatory | R | Medicine |
| D | Atropa | S | Tobacco |
| A | B | C | D | |
| 1. | R | P | S | Q |
| 2. | R | S | P | Q |
| 3. | P | R | S | Q |
| 4. | Q | P | R | S |
Subtopic: Families of Flowering Plant |
88%
Level 1: 80%+
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The figure represents the floral diagram of Family:
| 1. | Fabaceae | 2. | Liliaceae |
| 3. | Solanaceae | 4. | Brassicaceae |
Subtopic: Families of Flowering Plant |
86%
Level 1: 80%+
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Study the Assertion statement followed by the Reason statement given below:
| Assertion (A): | A flower with staminode is best suited for pollinating the pistil in artificial hybridisation experiments in angiosperms. |
| Reason (R): | Flowers with staminodes are unisexual and produce a large number of pollens. |
| 1. | Both (A) and (R) are False. |
| 2. | Both (A) and (R) are True and (R) is the correct explanation of (A). |
| 3. | Both (A) and (R) are True but (R) is not the correct explanation of (A). |
| 4. | (A) is False but (R) is True. |
Subtopic: Flower & Parts of Flower |
71%
Level 2: 60%+
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Identify the correct statements regarding a typical dicot seed:
1. Only I
2. Only II and III
3. Only III
4. I, II and III
| I. | The seed coat has two layers, the inner testa and the outer tegmen. |
| II. | The hilum is a scar on the seed coat through which the developing seeds were attached to the fruit. |
| III. | At the two ends of the embryonal axis are present the radicle and the plumule. |
1. Only I
2. Only II and III
3. Only III
4. I, II and III
Subtopic: Seed |
57%
Level 3: 35%-60%
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What are the features that distinguish a stem from a root?
1. Only I
2. Only II and III
3. Only I and III
4. Only I and II
| Stem | Root | |
| I: | Develops from plumule of germinating seed |
Develops from radicle of germinating seed |
| II: | Bears nodes and internodes |
Bears nodes but not internodes |
| III: | Does not bear buds | Bears buds, which may be terminal or axillary |
2. Only II and III
3. Only I and III
4. Only I and II
Subtopic: Morphology of Roots | Morphology of Stems |
66%
Level 2: 60%+
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Consider the two statements:
| Statement I: | When a flower has both androecium and gynoecium, it is dioecious. |
| Statement II: | Androecium and gynoecium are accessory organs of a flower. |
| 1. | Only Statement I is correct |
| 2. | Only Statement II is correct |
| 3. | Both Statement I and Statement II are correct |
| 4. | Both Statement I and Statement II are incorrect |
Subtopic: Flower & Parts of Flower |
66%
Level 2: 60%+
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