Agricultural biodiversity is conserved:
1. in ex-situ locations commonly in the form of gene banks
2. in ex-situ locations commonly in botanical gardens
3. in in-situ locations such as biosphere reserves
4. in in-situ locations in agricultural institute fields
The agricultural practice of producing or growing a single crop, plant or livestock species, variety, or breed in a field or farming system at a time is called as:
1. Monoculture
2. Polyculture
3. Oligoculture
4. Agriculture
The reasons to store seeds in a seed bank include all except:
1. | To have available the genes that plant breeders need to increase yield, disease resistance, drought tolerance, nutritional quality, taste, etc. of crops. |
2. | To forestall loss of genetic diversity in rare plant species in an effort to conserve biodiversity ex-situ. |
3. | To preserve the historical and cultural value of plants not grown now. |
4. | To guard against biopiracy by limiting the use of seeds only in certain areas. |
Recalcitrant seeds are:
1. seeds that do not survive drying and freezing during ex-situ conservation
2. seeds that can resist the effects of drying or temperatures less than 10 °C
3. can be stored for long periods
4. terminator seeds
Freezable specimens that can be preserved with cryopreservation include all except:
1. | Semen | 2. | Seeds |
3. | Early embryos | 4. | Human heart |
Earth Summit 2012 was held in:
1. | Rio | 2. | Johannesberg |
3. | Paris | 4. | Geneva |
Which of the following continents has the highest biodiversity?
1. | South America | 2. | Africa |
3. | Europe | 4. | Asia |
Which of the following is not a cause for the loss of biodiversity?
1. Destruction of habitat
2. Invasion by alien species
3. Keeping animals in zoological parks
4. Over-exploitation of natural resources
Where among the following will you find pitcher plants?
1. | Rain forest of North-East India | 2. | Sunderbans |
3. | Thar desert | 4. | Western ghats |