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Q. No.Reproduction without actual fertilization is called as:
1. Parthenogenesis
2. Parthenocarpy
3. Pseudo-reproduction
4. All of the above
Subtopic: Sexual Reproduction |
81%
Level 1: 80%+
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Reproduction without actual fertilisation is called as?
1. Parthenogenesis
2. Parthenocarpy
3. Presudo-reproduction
4. All of these
1. Parthenogenesis
2. Parthenocarpy
3. Presudo-reproduction
4. All of these
Subtopic: Sexual Reproduction |
58%
Level 3: 35%-60%
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Choose the incorrect about gemmules:
| 1. | They resist desiccation |
| 2. | They are internal buds |
| 3. | They are asexual structures which produce by binary fission |
| 4. | They can give rise to new organisms |
Subtopic: Asexual Reproduction |
52%
Level 3: 35%-60%
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A dicotyledonous plant bears flowers but never produces fruits and seeds. The most probable cause for this condition is
1. The plant is dioecious and bears only pistillate flowers.
2. The plant is dioecious and bears only staminate flowers.
3. The plant is monoecious.
4. The plant is dioecious and bears both pistillate and staminate flowers.
1. The plant is dioecious and bears only pistillate flowers.
2. The plant is dioecious and bears only staminate flowers.
3. The plant is monoecious.
4. The plant is dioecious and bears both pistillate and staminate flowers.
Subtopic: Reproduction |
55%
Level 3: 35%-60%
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Clear cut vegetative, reproductive and senescent phases are seen in:
I: Annual plants
II: Biennial plants
III: Perennial plants
1. Only I
2. Only III
3. Only I and II
4. I, II and III
I: Annual plants
II: Biennial plants
III: Perennial plants
1. Only I
2. Only III
3. Only I and II
4. I, II and III
Subtopic: Sexual Reproduction |
74%
Level 2: 60%+
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Identify the correct statements amongst the following:
| A: | All sexually reproducing organisms are diploid. |
| B: | The major difference between different cells in the same organism is that they have different DNA. |
1. Only A
2. Only B
3. Both A and B
4. Neither A nor B
Subtopic: Events during Sexual reproduction |
Level 3: 35%-60%
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Strobilanthes kunthiana [neelakurinji] flowers once in every:
1. 2 years
2. 12 years
3. 20 to 25 years
4. 50 to 100 years
Subtopic: Sexual Reproduction |
93%
Level 1: 80%+
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The vegetative propagule in the angiosperm Agave is known as:
1. Bulbil
2. Runner
3. Rhizome
4. Bulb
1. Bulbil
2. Runner
3. Rhizome
4. Bulb
Subtopic: Asexual Reproduction |
91%
Level 1: 80%+
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The genus, Ophioglossum, has the largest number of chromosomes in the known plant kingdom. The number of chromosomes in its meiocyte is:
1. 48
2. 96
3. 630
4. 1260
1. 48
2. 96
3. 630
4. 1260
Subtopic: Sexual Reproduction |
75%
Level 2: 60%+
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In angiosperms, after fertilization:
I: The zygote develops into the embryo.
II. The ovules develop into the seed.
III. The ovary develops into the fruit.
IV. A thick protective fruit wall called pericarp develops.
1. Only I, II and IV are correct
2. Only II, III and IV are correct
3. Only I, II and III are correct
4. I, II, III and IV are correct
I: The zygote develops into the embryo.
II. The ovules develop into the seed.
III. The ovary develops into the fruit.
IV. A thick protective fruit wall called pericarp develops.
1. Only I, II and IV are correct
2. Only II, III and IV are correct
3. Only I, II and III are correct
4. I, II, III and IV are correct
Subtopic: Events during Sexual reproduction |
84%
Level 1: 80%+
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