Botany MCQ Questions and Answers for Practice

1. Green house effect is related to

1. Increased growth of green algae
2. Global warming
3. Cultivation of vegetables in house
4. Development of terrace gardens.

2. Green manure plants used by farmers mainly belong to

1. Compositae
2. Leguminosae
3. Solanaceae
4. Poaceae

3. Horticulture is the study that includes

1. Fruits, vegetables and flowers
2. All food crops
3. Vegetable gardens and lawns near hotels only
4. Some bush crops and apples

4. In cold places frost damage can be reduced in horticultural crops using these methods except

1. Overhead sprinklers at night
2. Green houses and shade nets
3. Wind breaks placement
4. Appropriate fungicide application

5. In cutting method of vegetative propagation, cuttings are mainly taken from

1. Leaves of parent plant
2. Roots or stems of parent plant
3. Shoots of parent plant
4. Buds of parent plant

6. In hybridization this is not part of the technique used

1. Transfer pollen
2. Collect pollen
3. Emasculate
4. Use of two plants to bridge the stems together

7. Increasing high skin cancer and high mutation rate are

1. O3 depletion
2. Acid rain
3. CO pollution
4. CO2 Pollution.

8. Itai-Itai disease is due to the toxicity of

1. Lead
2. Cadmium
3. Strontium
4. Tin.

9. Layering can be done on plants such as

1. bulbs
2. Lime
3. Sugar cane
4. Oleander

10. Layering can be done on plants such as

1. Bulbs
2. bougainvillea
3. Sugar cane
4. Oleander

11. Lichens indicate pollution by

1. O3
2. SO2
3. NO2
4. CO.

12. Linnaeus is credited with introducing

1. The concept of inheritance
2. Law of limiting factor
3. Theory of heredity
4. Binomial nomenclature

13. Main function of biofertilizer is

1. To increase chemical process
2. To increase physiological process
3. To increase biological process
4. To increase photosynthesis process

14. Main function of biofertilizer is

1. To increase chemical process
2. To increase physiological process
3. To increase biological process
4. To increase photosynthesis process

15. Major aerosol pollutant in Jet Plane emission is

1. SO2
2. CO
3. CH4
4. CFC.