Please select a subject first
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How is rhytidome act as the structural defense by plants against fire?
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List out the effects of fire on plants.
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Give an account of various types of parasitism with examples.
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Match the following and choose the correct combination from the options given below:
| Column I (Interaction) | Column II (Examples) | ||
| I. | Mutualism | i) | Trichoderma and Penicillium |
| II. | Commensalism | ii) | Balanophora, Orobanche |
| III. | Parasitism | iii) | Orchids and Ferns |
| IV. | Predation | iv) | Lichen and Mycorrhiza |
| V. | Amensalism | v) | Nepenthes and Diaonaea |
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Write some plants are found in the sub-alpine forests.
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Generally, in summer, the forest area affected by natural fire. Over a period of time, it recovers itself by the process of successions. Find out the types of succession and explain.
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Various stages of succession are given below. From that rearrange them accordingly. Find out the type of succession and explain in detail.
Reed-swamp stage, phytoplankton stage, shrub stage, submerged plant stage, forest stage, submerged free-floating stage, marsh meadow stage.
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How do forests help in maintaining the climate?
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Accurate mapping of genes can be done by three-point test cross because increases
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Which one of the following hydrolysis internal phosphodiester bonds in a polynucleotide chain?
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If you cross dominant genotype PV/PV male Drosophila with double recessive female and obtain F1 hybrid. Now you cross F1 male with double recessive female.
What type of linkage is seen?
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Explain the mechanism of crossing over.
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How is Nicotiana exhibit self-incompatibility? Explain its mechanism.
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When two different genes came from the same parent they tend to remain together.
Draw the cross with a suitable example.
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If you cross dominant genotype PV/PV male Drosophila with double recessive female and obtain F1 hybrid. Now you cross F1 male with double recessive female.
Draw the cross with the correct genotype.
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| S. no | Gamete types | Number of progenies |
| 1. | ABC | 349 |
| 2. | Abc | 114 |
| 3. | abC | 124 |
| 4. | AbC | 5 |
| 5. | aBc | 4 |
| 6. | aBC | 116 |
| 7. | ABc | 128 |
| 8. | abc | 360 |
- What is the name of this test cross?
- How will you construct gene mapping from the above-given data?
- Find out the correct order of genes.
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What is gene mapping? Write its uses.
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Which of the following statement is correct
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Solidifying agent used in plant tissue culture is
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What is the name of the process given below? Write its 4 types.
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