Q. No.
Which of the following pairs is not correctly matched?
| Mode of reproduction | Example | ||
| (a) | Offset | (i) | Water hyacinth |
| (b) | Rhizome | (ii) | Banana |
| (c) | Binary fission | (iii) | Sargassum |
| (d) | Conidia | (iv) | Penicilium |
1. a
2. b
3. c
4. d
Match Column I with column II and select the correct option using the codes given below:
| Column I | Column II | ||
| A. | Pistils fused together | 1. | Gametogenesis |
| B. | Formation of gametes | 2. | Pistillate |
| C. | Hyphae of higher ascomycetes | 3. | Syncarpous |
| D. | Unisexual female flower | 4. | Dikaryotic |
1. A-4 B-3 C-2 D-1
2. A-2 B-1 C-4 D-3
3. A-1 B-2 C-4 D-3
4. A-3 B-1 C-4 D-2
Which one of the following generates new genetic combinations leading to variation?
1. Vegetative reproduction
2. Parthenogenesis
3. Sexual reproduction
4. Nucellar polyembryony
2. Jackfruit
3. Mango
4. Papaya
Which one of the following statements is not correct?
| 1. | Offspring produced by asexual reproduction is called clone |
| 2. | Microscopic motile asexual reproductive structures are called zoospores |
| 3. | In potatoes, bananas, and ginger, the plantlets arise from the internodes present in the modified stem |
| 4. | Water hyacinth growing in standing water drains oxygen from water that leads to the death of fish |
"All organisms have to reach a certain stage of maturity and growth, before they can reproduce sexually”. How many of the following is true for above statement?
(I) It is known as juvenile phase.
(II) It is known as vegetative phase in plants.
(III) It is of different duration in different organisms.
(IV) It is of same duration in different organisms.
Options :
1. 4
2. 3
3. 2
4. 1
Mark the mis-matched pair
1. Polycarpic plants - Recovery phase
2. Offset - Water hyacinth
3. Marchantia - Monoecious plant
4. Bulbil - Agave
Gamete formation always occurs in
(i) Sexual reproduction.
(ii) Asexual reproduction.
(iii) Parthenogenesis.
1. (i) only
2. (i), (ii), (iii)
3. (i) and (iii) only
4. (i) and (ii) only
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