- 1(current)
Q. No.| Assertion (A): | In polluted environments, melanic moths were more selected by nature. |
| Reason (R): | Melanic moths were able to camouflage themselves during industrialization. |
| 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. | (A) is false, but (R) is true. |
Subtopic: Â Concept of Isolation |Â Concept of Speciation |Â Genetic Basis of Adaptation |
 90%
Level 1: 80%+
Hints
| Assertion(A): | Evolution is not a directed process in the sense of determination. |
| Reason(R): | It is stochastic process based on chance events in nature and chance mutation in the organisms. |
| 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. |
Subtopic: Â Theory of Evolution & Lamarckism |Â Modern Theory of Evolution |Â Natural Selection |Â Genetic Basis of Adaptation |
 81%
Level 1: 80%+
Hints
The set of all genes, or genetic information, in a unit of evolution is called the :
1. genotype
2. polymorphism
3. multiple allelism
4. gene pool
Subtopic: Â Genetic Basis of Adaptation |
 87%
Level 1: 80%+
Hints
- 1(current)
Q. No.
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