At the root tip, the cells that are responsible for the growth of the root in length are located in the region that is:
1. distal to the region of meristematic activity
2. proximal to the region of meristematic activity
3. proximal to the region of maturation
4. distal to the region of elongation
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Ovary is one chambered but it becomes two chambered due to the formation of a false septum in:
1. | Mustard and Argemone | 2. | Argemone and Dianthus |
3. | Mustard and Primrose | 4. | Argemone and Primrose |
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Axile placentation is not seen in:
1. | China rose | 2. | Tomato |
3. | Lemon | 4. | Pea |
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If the fruit is formed without the fertilization of ovary, it is called as:
1. | Parthenogenetic | 2. | Parthenocarpic |
3. | Aggregate | 4. | False |
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Epigynous flower is seen in:
1. | China rose | 2. | Brinjal |
3. | Mustard | 4. | Ray florets of sunflower |
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Underground stems of potato, ginger, turmeric, Zaminkand and Colocasia:
I. Store food in them
II. Act as organs of perennation
1. Only I is correct
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect
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Which of the following is an endospermic seed?
1. | Bean | 2. | Gram |
3. | Pea | 4. | Castor |
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Generally, monocotyledonous seeds are endospermic. An important exception may be:
1. | Rice | 2. | Wheat |
3. | Orchids | 4. | Pea |
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Identify the correct statements amongst the following:
I: | When a shoot tip transforms into a flower, it is always solitary |
II: | In racemose inflorescence, the main axis continues to grow and flowers are borne in basipetal order |
III: | In cymose inflorescence, the main axis terminates in a flower and flowers are borne in basipetal order |
1. | Only I | 2. | Only I and II |
3. | Only I and III | 4. | Only II and III |
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The term ‘peripheral endosperm’ in monocotyledonous seeds normally refers to:
1. | Epicarp | 2. | Pericarp |
3. | Aleurone layer | 4. | Starchy endosperm |
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