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Q. No.Identify the correctly matched pairs:
Column I
[Family]
Column II
[Floral characters]
I:
Solanaceae
Bicarpellary obliquely placed, syncarpous, ovary superior, bilocular, placenta swollen with many ovules
II:
Fabaceae
Ovary superior, mono carpellary, unilocular with many ovules, style single
III:
Liliaceae
Tricarpellary, syncarpous, ovary superior, trilocular with many ovules
1. Only I and II
2. Only I and III
3. Only II and III
4. I, II and III
[Family]
[Floral characters]
Subtopic: Families of Flowering Plant |
72%
Level 2: 60%+
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Identify the correct statements regarding the inflorescence shown in the given picture:
Statement I: It is a racemose inflorescence.
Statement II: The flowers are borne in a basipetal order.
1. Only Statement I
2. Only Statement II
3. Both Statement I and Statement II
4. Neither Statement I nor Statement II
Statement I: It is a racemose inflorescence.
Statement II: The flowers are borne in a basipetal order.
1. Only Statement I
2. Only Statement II
3. Both Statement I and Statement II
4. Neither Statement I nor Statement II
Subtopic: Inflorescence |
68%
Level 2: 60%+
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Assertion(A): The cells of the elongation zone gradually differentiate and mature.
Reason(R): The zone, proximal to the region of elongation, is called the region of maturation.
Choices for Assertions and reasons:
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true, but (R) is not the correct explanation of (A).
3. (A) is true, but (R) is false.
4. (A) is false, but (R) is true.
Reason(R): The zone, proximal to the region of elongation, is called the region of maturation.
Choices for Assertions and reasons:
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true, but (R) is not the correct explanation of (A).
3. (A) is true, but (R) is false.
4. (A) is false, but (R) is true.
Subtopic: Morphology of Roots |
50%
Level 3: 35%-60%
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Assertion(A): Cymose type of inflorescence is limited in growth.
Reason(R): In cymose type of inflorescence, the main axis terminates in a flower.
Choices for Assertions and reasons:
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true, but (R) is not the correct explanation of (A).
3. (A) is true, but (R) is false.
4. (A) is false, but (R) is true.
Reason(R): In cymose type of inflorescence, the main axis terminates in a flower.
Choices for Assertions and reasons:
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true, but (R) is not the correct explanation of (A).
3. (A) is true, but (R) is false.
4. (A) is false, but (R) is true.
Subtopic: Inflorescence |
92%
Level 1: 80%+
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Assertion(A): The ovary of guava and cucumber, and the disc florets of sunflowers are inferior.
Reason(R): In flowers with inferior ovary, the margin of the thalamus grows upward enclosing the ovary completely and getting fused with it.
Choices for Assertions and reasons:
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true, but (R) is not the correct explanation of (A).
3. (A) is true, but (R) is false.
4. (A) is false, but (R) is true.
Reason(R): In flowers with inferior ovary, the margin of the thalamus grows upward enclosing the ovary completely and getting fused with it.
Choices for Assertions and reasons:
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true, but (R) is not the correct explanation of (A).
3. (A) is true, but (R) is false.
4. (A) is false, but (R) is true.
Subtopic: Flower & Parts of Flower |
Level 3: 35%-60%
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Assertion(A): The floral features are represented in the summarized form as floral diagrams and floral formula.
Reason(R): The floral characteristics form the basis of classification and identification of flowering plants.
Choices for Assertions and reasons:
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true, but (R) is not the correct explanation of (A).
3. (A) is true, but (R) is false.
4. (A) is false, but (R) is true.
Reason(R): The floral characteristics form the basis of classification and identification of flowering plants.
Choices for Assertions and reasons:
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true, but (R) is not the correct explanation of (A).
3. (A) is true, but (R) is false.
4. (A) is false, but (R) is true.
Subtopic: Families of Flowering Plant |
51%
Level 3: 35%-60%
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Sunderbans in West Bengal is a swampy area. The plants in this area bear special kind of roots called:
1. Pneumatophores
2. Prop roots
3. Stilt roots
4. Tuberous roots
1. Pneumatophores
2. Prop roots
3. Stilt roots
4. Tuberous roots
Subtopic: Modification of Roots |
93%
Level 1: 80%+
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In an epigynous flower, the ovary is situated:
| 1. | below other floral parts |
| 2. | above other floral parts |
| 3. | at the same level as other floral parts |
| 4. | not on the thalamus |
Subtopic: Flower & Parts of Flower |
78%
Level 2: 60%+
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At the root tip, which of the following regions will be the most ‘distal’?
| 1. | Region of meristematic activity |
| 2. | Region of root hairs |
| 3. | Region of maturation |
| 4. | Region of elongation |
Subtopic: Morphology of Roots |
Level 3: 35%-60%
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The flower cannot be divided into two similar halves by any vertical plane passing through the centre in:
| 1. | Canna | 2. | Pea |
| 3. | Mustard | 4. | Datura |
Subtopic: Flower & Parts of Flower |
86%
Level 1: 80%+
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