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प्रश्न
Define Population.
परिभाषा
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उत्तर
According to the Modern Synthesis Theory (the Neo-Darwinian theory), a population is a group of interbreeding individuals of the same species with a shared gene pool within a specific geographical area. This gene pool contains all the genetic variations in the population, and through mechanisms like natural selection, mutation, genetic drift, and gene flow, evolutionary changes occur over generations.
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संबंधित प्रश्न
Very short answer question.
If variation occurs in a population by chance alone and not by natural selection and brings a change in frequencies of an allele. What is it called?
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 |
Define the term ‘Mendelian population’.
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 |
Genetic drift is more significant in ______
Which animal was very conspicuously visible on the tree trunks after the industrial revolution (1845) in Great Britain?
Define the term:
Genetic drift
Define the Transformation.
What is Genetic recombination?
If the members of two different populations do not interbreed due to difference in the structure of reproductive organs, then it is called ______ isolation.
