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 |
Which one of the following is not a major characteristic feature of biodiversity hotspots?
1. A large number of species
2. Abundance of endemic species
3. Mostly located in the tropics
4. Mostly located in the polar regions
Match the animals given in column I with their location in column II:
Column I |
Column II |
||
A. |
Dodo |
i. |
Africa |
B. |
Quagga |
ii. |
Russia |
C. |
Thylacine |
iii. |
Mauritius |
D. |
Stellar’s sea cow |
iv. |
Australia |
Choose the correct match from the following:
1. | A-i | B-iii | C-ii | D-iv |
2. | A-iv | B-iii | C-i | D-ii |
3. | A-iii | B-i | C-ii | D-iv |
4. | A-iii | B-i | C-iv | D-ii |