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Q. No.If the number of chromosomes in a meiocyte of apple is 34, what would be the number of chromosomes in its somatic cells?
1. 17
2. 34
3. 51
4. 68
53%
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In some plants buds can grow where it normally would not. One such location may be in the margins of leaves. Name a plant where such buds are used as vegetative propagules:
1. Eichhornia crassipes
2. Bryophyllum
3. Rhizophora
4. Amorphophallus
1. Eichhornia crassipes
2. Bryophyllum
3. Rhizophora
4. Amorphophallus
Subtopic: Asexual Reproduction |
90%
From NCERT
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In diploid organisms, specialized cells called meiocytes undergo meiosis. At the end of meiosis:
1. all gametes produced are genetically identical
2. four gametes are always produced from a meiocyte in all organisms
3. only one set of chromosomes gets incorporated into each gamete
4. 50 % of gametes will have odd number and 50 % of gametes will have even number of chromosomes
1. all gametes produced are genetically identical
2. four gametes are always produced from a meiocyte in all organisms
3. only one set of chromosomes gets incorporated into each gamete
4. 50 % of gametes will have odd number and 50 % of gametes will have even number of chromosomes
Subtopic: Sexual Reproduction | Events during Sexual reproduction |
51%
From NCERT
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Which of the following is not correctly matched?
| Vegetative propagule | Example | |
| 1. | Eye | Ginger |
| 2. | Bulbil | Agave |
| 3. | Leaf buds | Bryophyllum |
| 4. | Offset | Water hyacinth |
Subtopic: Asexual Reproduction |
92%
From NCERT
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Subtopic: Sexual Reproduction | Events during Sexual reproduction |
84%
From NCERT
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Identify the incorrectly matched pair:
| 1. | Encystation and multiple fission | Amoeba |
| 2. | Buds | Hydra |
| 3. | Gemmules | Cnidarians |
| 4. | Conidia | Penicillium |
Subtopic: Asexual Reproduction |
92%
From NCERT
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Identify the asexual reproductive structure associated with penicillium :
1. Buds
2. Zoospores
3. Conidia
4. Gemmules
1. Buds
2. Zoospores
3. Conidia
4. Gemmules
Subtopic: Asexual Reproduction |
86%
From NCERT
NEET - 2022
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NEET 2025 - Target Batch
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NEET 2025 - Target Batch
Which of the following is/are vegetative propagule(s) ?
(a) Eyes of Potato
(b) Zoospore of Chlamydomonas
(c) Rhizome of Ginger
(d) Buds in Hydra
(e) Bulbil of Agave
Choose the most appropriate answer from the options given below :
1. (e) only
2. (a), (c), (e) only
3. (a), (b), (c), (d) only
4. (b), (d) only
Subtopic: Asexual Reproduction |
79%
From NCERT
NEET - 2022
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NEET 2025 - Target Batch
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Both multiple fission and binary fission are seen in:
1. Escherechia coli
2. Plasmodium falciparum
3. Amoeba
4. Penicillum
1. Escherechia coli
2. Plasmodium falciparum
3. Amoeba
4. Penicillum
Subtopic: Asexual Reproduction |
86%
From NCERT
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The sobriquet ‘terror of Bengal’ is given to water hyacinth because:
| 1. | it reproduces asexually at a phenomenal rate making it an invasive species in water bodies. |
| 2. | it is very damaging competitor to the jute crop in West Bengal. |
| 3. | it produces secondary metabolites such as cardiac glycosides causing death of cattle feeding on it. |
| 4. | it flowers once in a decade and when it does it produces a lot of toxins in aquatic bodies. |
Subtopic: Asexual Reproduction |
86%
From NCERT
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