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प्रश्न
Industrial melanism is one of the best example for ______.
पर्याय
speciation
natural selection
reproductive isolation
mutation
geographical isolation
adaptive radiation
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उत्तर
Industrial melanism is one of the best example of natural selection.
Explanation:
It demonstrates how environmental changes favor certain traits in organisms. During industrialization, dark-colored moths had a survival advantage over light-colored moths due to better camouflage against pollution-darkened tree trunks. This led to an increase in their population, showing natural selection in action.
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संबंधित प्रश्न
What is ‘gene flow’?
Match the columns and choose the correct option.
| Column I | Column II | ||
| i. | Ecological isolation | a. | Sexually mature at different times of the year |
| ii. | Ethological isolation | b. | Specific mating behaviours |
| iii. | Mechanical isolation | c. | Difference in structure of mating organs |
| iv. | Seasonal isolation | d. | Same geographic region but separate habitat |
Identify the INCORRECT statement.
The structural, morphological change chromosome due to rearrangement is called ____________.
______ is the separation of the population of a particular species into smaller units which prevents interbreeding between them.
Chromosomal aberration causing no loss or gain of gene complement of the chromosome is called ____________.
Sewall Wright effect is ______
Which animal was very conspicuously visible on the tree trunks after the industrial revolution (1845) in Great Britain?
Define the term:
Genetic drift
Match the following
| Column A | Column B | ||
| (i) | Dryopithecus | (a) | Java and Peking |
| (ii) | Ramapithecus | (b) | Toung in South Africa |
| (iii) | Australopithecus | (c) | Lake Victoria of Africa |
| (iv) | Homo erectus | (d) | Shivalik hills in India |
