The process which makes a major difference between C3 and C4 plants is:
| 1. | glycolysis | 2. | Calvin cycle |
| 3. | photorespiration | 4. | respiration |
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 |
Which one of the following generates new genetic combinations leading to variation?
1. Vegetative reproduction
2. Parthenogenesis
3. Sexual reproduction
4. Nucellar polyembryony
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
In the majority of angiosperms:
| 1. | egg has a filiform apparatus |
| 2. | there are numerous antipodal cells |
| 3. | reduction division occurs in the megaspore mother cells |
| 4. | a small central cell is present in the embryo sac |
Pollination in water hyacinth and water lily is brought about by the agency of:
| 1. | water | 2. | insects or wind |
| 3. | birds | 4. | bats |
The ovule of an angiosperm is technically equivalent to:
1. megasporangium
2. megasporophyll
3. megaspore mother cell
4. megaspore
Taylor conducted the experiments to prove semi-conservative mode of chromosome replication on:
1. Vinca rosea
2. Vicia faba
3. Drosophila melanogaster
4. E. Coli
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