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Question
Industrial melanism is one of the best example for ______.
Options
speciation
natural selection
reproductive isolation
mutation
geographical isolation
adaptive radiation
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Solution
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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RELATED QUESTIONS
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 |
Long answer question.
Describe the different types of reproductive isolations.
Define the term ‘Mendelian population’.
Write down the three main concepts of the modern synthetic theory.
Match the columns and choose the correct option.
| Column I | Column II | ||
| i. | Zygote mortality | a. | Hybrid develops to maturity but becomes sterile |
| ii. | Hybrid sterility | b. | Egg is fertilized but zygote dies |
| iii. | Gamete mortality | c. | Union of two gametes does not occur in the iven time |
Identify the INCORRECT statement.
Fertilization between opposite mating gametes leads to ______.
Ethological isolation is due to differences in ______
Write short note on Gene pool.
Which of the following is a pre-mating mechanism of isolation?
