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प्रश्न
Industrial melanism is one of the best example for ______.
विकल्प
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
Give two chromosomal similarities between man and apes.
Match the following:
| Column- I | Column- II |
| 1. August Weismann | a. Mutation theory |
| 2. Hugo de vries | b. Germplasm theory |
| 3. Charl Darwin | c. Theory of acquired characters |
| 4. Lamark | d. Theory of natural selection |
What is hybrid sterility?
Write down the three main concepts of the modern synthetic theory.
Which of the following is the CORRECT difference between genetic drift and natural selection?
Hybrids develop to maturity but become sterile due to failure of proper gametogenesis. This is a post mating barrier called ____________.
The movement of genes into or out of a population is known as ______.
Reasons for diversity in a living being is:
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 |
Define the term Chromosomal aberrations.
