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Q. No.Identify the correct statements:
A:
When a flower can be divided into two equal radial halves in any radial plane passing through the centre, it is said to be actinomorphic.
B:
When a flower can be divided into two similar halves only in one particular vertical plane, it is said to be zygomorphic.
C:
Actinomorphic flowers are seen in pea, gulmohur, bean, Cassia.
D:
Zygomorphic flowers are seen in canna.
1.
A and B
2.
C and D
3.
A and C
4.
B and D
Subtopic: Flower & Parts of Flower |
89%
From NCERT
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In the given figure, the coleoptile and coleorhiza are respectively represented by:
| 1. | IV and V | 2. | I and II |
| 3. | III and VI | 4. | II and III |
Subtopic: Seed |
81%
From NCERT
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Which of the following stem modifications develop from axillary bud?
I: Tendril
II: Thorn
I: Tendril
II: Thorn
| 1. | Only I | 2. | Only II |
| 3. | Both I and II | 4. | Neither I nor II |
Subtopic: Modifications of Stem |
80%
From NCERT
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Consider the given two statements:
| Assertion(A): | In cymose type of inflorescence, the main axis is limited in growth. |
| Reason (R): | In cymose type of inflorescence, the flowers are borne in a basipetal order. |
| 1. | Both (A) and (R) are True and (R) correctly explains (A). |
| 2. | Both (A) and (R) are True but (R) does not correctly explain (A). |
| 3. | (A) is True; (R) is False |
| 4. | Both (A) and (R) are False |
Subtopic: Inflorescence |
50%
From NCERT
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How many of the given statements are correct?
1. 1
2. 2
3. 3
4. 4
| I: | When stamens are attached to the petals, they are epipetalous |
| II: | When stamens are attached to the perianth, they are epiphyllous |
| III: | A sterile stamen is called staminate |
| IV: | Polyadelphous stamens are seen in citrus |
2. 2
3. 3
4. 4
Subtopic: Flower & Parts of Flower |
61%
From NCERT
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Ovary is one-chambered but becomes two-chambered due to the formation of the false septum in:
1. Argemone
2. Salvia
3. Cassia
4. Primrose
1. Argemone
2. Salvia
3. Cassia
4. Primrose
Subtopic: Flower & Parts of Flower |
81%
From NCERT
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The following diagram can represent the position of the ovary in:
| 1. | Brinjal | 2. | Guava |
| 3. | Rose | 4. | Mustard |
Subtopic: Flower & Parts of Flower |
77%
From NCERT
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Axillary buds of the stem may get modified into:
| 1. | Tendrils | 2. | Thorns |
| 3. | Both 1 and 2 | 4. | Neither 1 nor 2 |
Subtopic: Modifications of Stem |
84%
From NCERT
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The region of the root that is responsible for the growth of root in length is:
1. Root cap
2. Region of meristematic activity
3. Region of elongation
4. Region of maturation
1. Root cap
2. Region of meristematic activity
3. Region of elongation
4. Region of maturation
Subtopic: Morphology of Roots |
78%
From NCERT
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In China rose:
1. Only I is correct
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect
| I: | Phyllotaxy is whorled. |
| II: | Flower is hypogynous. |
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect
Subtopic: Flower & Parts of Flower |
79%
From NCERT
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