- 1(current)
Q. No.Industrial melanism as observed in peppered moths proves that:
| 1. | Melanism is a pollution-generated feature. |
| 2. | The true black melanic forms arise from a recurring random mutation. |
| 3. | The melanic form of the moth has no selective advantage over lighter from the industrial area. |
| 4. | The lighter form of the moth has no selective advantage either in a polluted industrial area or a non-polluted area. |
Subtopic: Natural Selection |
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In a species, the weight of a newborn ranges from 2 to 5 kg. 97% of the newborns with an average weight between 3 to 3.3 kg survive whereas 99% of the infants born with weights from 2 to 2.5 kg or 4.5 kg to 5 kg die. Which type of selection process is taking place?
1. Cyclical selection
2. Directional selection
3. Stabilizing selection
4. Disruptive selection
Subtopic: Natural Selection |
67%
From NCERT
NEET - 2019
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Industrial melanism is an example of:
| 1. | Natural selection | 2. | Mutation |
| 3. | Racial difference | 4. | Predation |
Subtopic: Natural Selection |
95%
From NCERT
AIPMT - 1999
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In the case of peppered moth (Biston betularia), the black-coloured form became dominant over the light-coloured form in England during the industrial revolution. This is an example of:
| 1. | natural selection, whereby the darker forms were selected |
| 2. | appearance of the darker coloured individuals due to very poor sunlight |
| 3. | protective mimicry |
| 4. | inheritance of darker colour character acquired due to the darker environment |
Subtopic: Natural Selection |
87%
From NCERT
AIPMT - 2009
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- 1(current)
Q. No.
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