Assertion (A): | Genetic diversity serves as a way for populations to adapt to changing environments. |
Reason (R): | Genetic diversity is the total number of genetic characteristics in the genetic makeup of a species. |
In the light of the above statements, choose the most appropriate answer from the options given below :
1. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
2. | Both (A) and (R) are true but (R) is not the correct explanation of (A). |
3. | (A) is true but (R) is false. |
4. | Both (A) and (R) are false. |
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
Year-to-year variation shown by areas with more species is ................... with respect to areas with less species.
1. | less | 2. | more |
3. | same | 4. | absent |
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
The active chemical drug reserpine is obtained from:
1. | Datura | 2. | Rauwolfia |
3. | Atropa | 4. | Papaver |
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
Plants are an important source of medicines for human use. Identify the incorrectly matched pair:
|
PLANT |
MEDICINE |
1. |
Taxusbrevifolia |
Anticancer drug |
2. |
Cinchona officinalis |
Anti-malarial |
3. |
Rauwolfiaserpentina |
Anti-hypertensive |
4. |
Catharanthusroseus |
Anti-helminthic |
Organisms that are least likely to experience extinction over the long term are most likely to be found in:
1. | areas inhabited by humans | 2. | very stable habitats |
3. | desert | 4. | savanna |
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.